What exactly will I receive?

Fifteen germinated Inga vera seeds — living planting material with germination already underway — plus free shipping and access to this species-specific growing guide. You are not receiving a potted tree, and fruit is not included.

Are these Inga vera seeds already germinated?

Yes. This product is sold as germinated seeds, and some will show an emerged radicle (first root). They are not dry dormant seeds sitting in a packet.

Why does Alpha Tropic ship them germinated?

Because that is how the species behaves. Inga seed matures moisture-rich and keeps moving toward growth rather than drying into dormancy, so shipping germinated material reflects the seed's real biology rather than fighting it.

What is a recalcitrant seed?

A seed that tolerates drying poorly and cannot be dried down and stored the way ordinary orthodox garden seed can. Research on Inga vera describes high moisture content, poor desiccation tolerance, short conventional storage life and rapid progression toward germination.

Can I store the seeds before planting?

No. Once the radicle has emerged the seed is not a storage item — it is actively developing. Treat the arrival day as planting day.

How soon should I plant after delivery?

As soon as you can, ideally the same day the package arrives. Have containers and medium ready before you open the parcel.

How do I handle an emerging radicle?

Hold the seed by its body, never by the root. Do not trim, shorten or straighten the radicle, and keep it from drying while you work.

Which direction should the root face?

Downward, or simply as it naturally lies. Guide it gently into the medium — do not bend a developed radicle sharply to force a particular orientation.

How deeply should I plant a germinated Inga seed?

Shallowly, with a light covering of medium. Depth is far less important than avoiding compaction and keeping oxygen available around the seed.

Should I bury the entire seed deeply?

No. Deep burial in heavy soil is one of the most common ways germinated Inga seeds are lost — the seed ends up in oxygen-poor conditions.

How moist should the growing medium remain?

Evenly moist, like a wrung-out sponge. Never bone dry, never muddy or standing in water.

What happens if an Inga seed dries out?

Severe drying is particularly damaging for recalcitrant seed. A shrivelled radicle usually does not recover, which is why prompt planting and steady moisture matter so much.

Can too much water damage the seedling?

Yes. Roots need oxygen, and a permanently saturated medium suffocates them and encourages rot. Aim for moisture with drainage and air, not swamp.

What soil or substrate should I use?

An airy, organic, moisture-retentive but free-draining mix — for example a quality potting mix opened up with perlite or coarse bark — in a container with real drainage holes.

How much light should a new seedling receive?

Bright but protected light while establishing: filtered light or light shade rather than harsh all-day direct sun.

When can I increase sunlight?

Gradually, as the seedling develops leaves and root mass. Add exposure in steps over a couple of weeks and watch for bleaching or scorch.

Is Inga vera native to Puerto Rico?

Yes. Puerto Rico falls within the species' native range, which extends through parts of Mexico, Central America, South America and the Caribbean.

What is Inga vera called in Puerto Rico?

Guaba. In English references it also appears as river koko, and the genus at large is often marketed under the broad name Ice Cream Bean.

Why has Inga vera been associated with coffee farms?

USDA-NRCS identifies it among the native trees traditionally used by Puerto Rican coffee producers as shade trees. Shade trees create an upper canopy above the coffee layer, influencing microclimate, soil protection, organic matter cycling and habitat complexity.

Is Inga vera a nitrogen-fixing tree?

It belongs to Fabaceae, the legume family, whose members can associate with nitrogen-fixing bacteria in root nodules. That is an ecological relationship centred on the tree's own root zone and litter — not a substitute for fertilizing a whole garden.

Does Inga vera produce edible fruit?

Inga vera has documented food use, and fruits of Inga species have traditionally been eaten fresh across tropical America. Quality varies between individual trees and growing conditions.

What part of an Inga fruit is eaten?

The soft fleshy material surrounding the seeds inside the pod — not the seed itself and not the pod wall.

Is Inga vera the same as Inga spectabilis?

No. They are separate botanical species that can differ in pod morphology, foliage, growth characteristics and distribution. Alpha Tropic sells both, identified botanically so you know exactly which one you are buying.

Is Inga vera the same as Inga edulis?

No. Inga edulis is a different species. Confusingly, the historical name "Inga vera Kunth" is an illegitimate later homonym treated in connection with Inga edulis — the accepted name for the species sold here is Inga vera Willd.

Why are several Inga species called Ice Cream Bean?

Because it is a broad commercial common name applied across the genus, based on the sweet fleshy material inside the pods. Common names are not botanical identities, which is why we list the accepted scientific name.

What do Inga vera flowers look like?

Clustered or spike-like heads of pale to white flowers with long, conspicuous stamens that give them a soft brush-like or powder-puff appearance.

What is polyembryony?

The capacity of a single seed to contain more than one embryo, and so potentially produce more than one seedling. It has been documented in research on Inga vera material.

Can one Inga seed sometimes develop more than one embryo?

Research has documented polyembryony in this species, so it can occur. It is a biological curiosity rather than a predictable outcome.

Does that mean my seeds will produce multiple plants?

No. Alpha Tropic makes no such promise and does not count polyembryony toward quantity. You receive exactly 15 germinated seeds.

How large can Inga vera eventually become?

It develops into a spreading tropical tree, so plan for genuine root and canopy space. Final size depends on climate, soil, water and management.

Can it be container-grown while young?

Yes, and container culture is the practical option outside the tropics. Step the plant up progressively and expect it to eventually want more space than a pot provides.

Can it tolerate frost?

No frost tolerance is claimed. Kew documents the species primarily from wet tropical biomes; in cold climates it needs protection from damaging cold.

How should I transplant a young Inga?

Move it at the start of the warm season, keep the root ball intact, replant at the same depth, water in thoroughly and give it a week or so of gentler light while it settles.

How quickly does it grow?

That depends on temperature, root space, moisture, nutrition and light. Warm, bright, evenly moist and well-drained conditions move a seedling along; cool, dark or waterlogged conditions stall it. No fixed growth rate is promised.

Fruiting depends on maturity, climate, space, pollination and management, and cannot be reduced to a fixed age. We do not guarantee fruiting or a first-fruiting date.

How to Grow Inga vera from Germinated Seed | Complete Guaba Growing Guide — Growing Guide

Meet Inga vera

Inga vera Willd. is an evergreen tropical tree in Fabaceae, the legume family. Kew recognizes it as an accepted species, with two accepted infraspecific taxa that we do not assign to this seed lot without verification.

Scientific name: Inga vera Willd.
Family: Fabaceae
Genus: Inga
Local name: Guaba (Puerto Rico); river koko in English usage
Name to avoid confusing: "Inga vera Kunth" is an illegitimate later homonym treated in connection with Inga edulis.

Native range and Puerto Rico

Distribution: Portions of Mexico, Central America, South America and the Caribbean.
Puerto Rico: Inside the native range — Inga vera is native to the island, not an introduction.
Biome: Kew documents the species primarily from wet tropical biomes.
Provenance of these seeds: Puerto Rico.

Why Inga seeds are unusual

Most garden seed dries down, waits and is planted later. Inga seed matures moisture-rich and keeps moving toward growth.

Dry garden seed: Matures → dries → dormancy and storage → sown → germinates.
Inga vera: Matures moisture-rich → stays metabolically active → moves quickly toward germination → needs prompt planting.
Simplification: An educational comparison, not a claim that every seed behaves identically.

Recalcitrant seed biology

Definition: Recalcitrant seeds tolerate drying poorly and cannot be stored dry the way orthodox seeds can.
Moisture content: Inga vera seed is described in research as high in moisture at maturity.
Storage life: Short by conventional means — these are not shelf seeds.
Maturation research: Work on Inga vera describes embryos progressing toward germination without the pronounced desiccation phase seen in many conventional seeds.
Practical meaning: Plant promptly and never allow the seed or radicle to dry completely.

What "germinated seed" means

Condition: Living, actively developing planting material — some seeds will show an emerged radicle.
Not: Not dry dormant seed, not a rooted cutting, not a potted tree.
No percentage: Alpha Tropic does not promise a germination percentage or survival rate.

First 24 hours after delivery

1. Open promptly: Unpack the day the parcel arrives.
2. Inspect: Note which seeds show a visible radicle; do not clean, trim or disturb them.
3. Prepare first: Fill and pre-moisten containers before unwrapping, so seeds are not left exposed to dry air.
4. Plant: Plant the same day where possible.

Understanding the radicle

What it is: The radicle is the seedling's first root and its only route to water and nutrients.
Handling: Lift the seed by its body; never pull, pinch or hang the seed by the root.
Never trim: Do not shorten, break or 'tidy' an emerged radicle.
Discoloration: A firm, pale, turgid radicle is healthy; a shrivelled, dry one has usually been damaged by desiccation.

Planting orientation

Ideal: Guide an emerged root downward into the medium, or let it lie naturally where it already points.
Avoid: Sharply bending a developed radicle to force a textbook orientation.
No visible root yet: Lay the seed on its side, shallowly covered; the root will orient itself.

Planting depth

Shallow: Cover lightly rather than burying deeply.
Why: A developing seed trapped beneath a heavy compacted layer runs out of oxygen.
Surface care: Keep the surface loose; avoid pressing the mix into a crust.

Growing medium

Texture: Airy, organic, moisture-retentive but genuinely free-draining.
Example mix: Quality potting mix opened up with perlite or coarse bark.
Container: Real drainage holes; no decorative pots without an outlet.
Avoid: Heavy garden clay, dense mixes and reused compacted soil.

Moisture versus waterlogging

Aim for: Consistent moisture + drainage + air in the root zone.
Too dry: Severe drying is the single most dangerous condition for a recalcitrant Inga seed.
Too wet: Saturated, airless medium suffocates roots and invites rot.
Test: The mix should feel like a wrung-out sponge, never like mud.

Temperature

Preference: Steady tropical warmth suits establishment; cold stalls root and shoot growth.
Cold: No frost tolerance is claimed — protect from damaging cold.
Cool climates: Grow in containers and shelter indoors or under glass through the cold season.

Light and acclimation

Establishing: Bright light with protection — filtered light or light shade, not harsh all-day sun.
Then: Increase exposure gradually as leaves and roots develop.
Why: A vulnerable newly establishing seed and an established tropical tree tolerate very different light.
Symptom of rushing: Bleached, scorched or crisped young foliage.

Early seedling development

Sequence: Root establishment → shoot emergence → expanding young foliage → progressively stronger seedling → woody juvenile tree.
Variables: Temperature, root space, moisture, nutrition and light.
No fixed rate: Growth speed varies; no growth-rate guarantee is offered.

Container progression

Start: A modest, well-drained seedling container.
Move up: Step up in size progressively as roots fill the current pot.
Avoid: Both long-term severe root restriction and an oversized, persistently wet pot around a tiny seedling.

Root development

Priority: Early energy goes into roots before visible top growth — patience here pays off.
Disturbance: Keep the root ball intact when potting on.
Oxygen: Roots respire; drainage and mix structure matter as much as watering frequency.

Nutrition

Early on: Avoid heavy fertilizer while the seedling is very young.
Later: Light, balanced feeding during active warm-season growth once the plant is established.
Organic matter: Compost and mulch support the soil biology this legume works with.
Nitrogen note: As a legume it can associate with nitrogen-fixing bacteria, but that does not remove the need for sound soil care.

Establishing outdoors

Site: Frost-free, warm, with organic, free-draining soil and space for a tree.
Timing: Plant out at the start of the warm, wet growing season where possible.
Acclimation: Harden the plant to outdoor light and wind over a couple of weeks before planting out.
Aftercare: Water in well; mulch the surface, keeping mulch off the stem.

Long-term tree development

Habit: A spreading tropical tree with compound foliage and a broad canopy.
Space: Allow room for both roots and canopy; do not plant tight against structures.
Conditions: Warm, humid, moist and well-drained conditions suit it best.

Pruning and size management

Formative: Light shaping while young builds a sound branch structure.
Maintenance: Remove damaged, crossing or crowded growth.
Containers: Periodic pruning of top and roots keeps a container specimen in scale, though it will not stay small indefinitely.

Flowers

Appearance: Clustered or spike-like heads of pale to white flowers with conspicuous elongated stamens creating a brush-like look.
Visitors: Flowers of this type are widely visited by insects; no specific pollinator relationship is claimed for this seed source.
Timing: Depends on maturity, climate and management; no flowering timeline is guaranteed.

Pods and fruit

Fruit type: Botanically a legume — an elongated, ribbed, often gently twisted pod.
Edible part: The fleshy material surrounding the seeds, not the seed itself.
Tradition: Fruits of Inga species have traditionally been eaten fresh across tropical America; Inga vera has documented food use.
Variation: Quality and flavor vary between individual trees and conditions; no fruiting guarantee.

Inga vera in Puerto Rican coffee agroforestry

USDA-NRCS identifies Inga vera — Guaba / river koko — among native trees traditionally used by Puerto Rican coffee producers as shade trees.

Structure: Shade trees form an upper canopy above the coffee layer, making the farm a layered agroecosystem.
Possible effects: Influence on microclimate and shade, soil protection, organic matter cycling, habitat complexity for pollinators and wildlife.
Beyond the island: Inga species and Inga vera have also been studied in coffee agroforestry elsewhere in tropical America.
Pairing: Growers of Alpha Tropic Coffea arabica may find the species relationship worth exploring.

Nitrogen-fixing legume context

Mechanism: Legumes can host nitrogen-fixing bacteria in root nodules, converting atmospheric nitrogen into plant-available forms.
Scale: The effect operates mainly around the tree's own root zone and through its leaf litter.
Not a claim: Planting one tree does not fertilize an entire garden.

Inga vera vs Inga spectabilis vs Inga edulis

Common name overlap: "Ice Cream Bean" is applied broadly to more than one Inga species.
This species: Inga vera Willd. — the plant sold here.
Separate species: Inga spectabilis and Inga edulis are distinct botanical species, not synonyms of Inga vera.
Differences: Species can differ in pod morphology, foliage, growth characteristics and geographic distribution.
Compare: Alpha Tropic also offers fresh Inga spectabilis (Guaba Machete) seeds if you want to grow both.

Step-by-step germination

1
Open the package promptly
These seeds are already biologically active. Unpack them the day they arrive rather than leaving the box closed for several days.
2
Inspect, don't intervene
Look the seeds over and note which ones have a visible radicle. Do not remove, trim, shorten or break the emerging root, and do not scrub the seed body.
3
Handle by the seed body
Lift each seed by its body rather than pulling on the radicle. The young root is fragile and is the seedling's entire connection to water and nutrients.
4
Prepare containers first
Have pots filled and pre-moistened before you unwrap the seeds, so they are never left sitting exposed to dry air while you mix soil.
5
Choose the medium
Use an airy, organic, moisture-retentive but free-draining mix — a quality potting mix opened up with perlite or coarse bark works well. Use a container with real drainage holes.
6
Set the orientation naturally
Where a root has already emerged, guide it downward or simply let it lie naturally into the medium. Do not sharply bend a developed radicle to force an artificial orientation.
7
Plant shallowly
Cover lightly. The developing seed should not be trapped beneath a heavy, compacted layer of soil where oxygen cannot reach it.
8
Water in, then keep it even
Water thoroughly and let the excess drain away. From then on keep the root zone evenly moist — never letting the seed or radicle dry completely, and never leaving the pot standing in water.
9
Warmth and filtered light
Keep the pots warm and in bright but protected light while the seedling establishes. Harsh all-day sun on a freshly planted germinated seed is a common way to lose it.

Common problems and fixes

The radicle looks shrivelled or dry

Likely cause: The seed was left unplanted or exposed to dry air

Fix: Plant immediately in a pre-moistened airy mix and keep the root zone evenly moist. Recalcitrant seed does not recover well from severe drying, so prevention is the real fix.

Seed rots instead of growing

Likely cause: Saturated, airless medium or burial under heavy compacted soil

Fix: Use a free-draining mix, plant shallowly, let excess water drain fully, and never leave the pot standing in water.

Root snapped during unpacking

Likely cause: The seed was lifted by the radicle

Fix: Plant it anyway and keep conditions ideal — some seedlings recover by producing new root growth — and handle remaining seeds by the seed body.

Seedling stalls with no shoot

Likely cause: Cool temperatures or low light slowing establishment

Fix: Move to steady warmth and bright protected light. Early energy goes into roots first, so some delay before visible top growth is normal.

Young foliage bleached or scorched

Likely cause: Too much direct sun too soon

Fix: Return to filtered light and increase exposure gradually over a couple of weeks.

Seedling outgrowing its pot

Likely cause: This is a tree, and seedling containers are temporary

Fix: Step up one container size at a time, keeping the root ball intact, or plant into a frost-free permanent position.

Frequently asked questions

What exactly will I receive?: Fifteen germinated Inga vera seeds — living planting material with germination already underway — plus free shipping and access to this species-specific growing guide. You are not receiving a potted tree, and fruit is not included.
Are these Inga vera seeds already germinated?: Yes. This product is sold as germinated seeds, and some will show an emerged radicle (first root). They are not dry dormant seeds sitting in a packet.
Why does Alpha Tropic ship them germinated?: Because that is how the species behaves. Inga seed matures moisture-rich and keeps moving toward growth rather than drying into dormancy, so shipping germinated material reflects the seed's real biology rather than fighting it.
What is a recalcitrant seed?: A seed that tolerates drying poorly and cannot be dried down and stored the way ordinary orthodox garden seed can. Research on Inga vera describes high moisture content, poor desiccation tolerance, short conventional storage life and rapid progression toward germination.
Can I store the seeds before planting?: No. Once the radicle has emerged the seed is not a storage item — it is actively developing. Treat the arrival day as planting day.
How soon should I plant after delivery?: As soon as you can, ideally the same day the package arrives. Have containers and medium ready before you open the parcel.
How do I handle an emerging radicle?: Hold the seed by its body, never by the root. Do not trim, shorten or straighten the radicle, and keep it from drying while you work.
Which direction should the root face?: Downward, or simply as it naturally lies. Guide it gently into the medium — do not bend a developed radicle sharply to force a particular orientation.
How deeply should I plant a germinated Inga seed?: Shallowly, with a light covering of medium. Depth is far less important than avoiding compaction and keeping oxygen available around the seed.
Should I bury the entire seed deeply?: No. Deep burial in heavy soil is one of the most common ways germinated Inga seeds are lost — the seed ends up in oxygen-poor conditions.
How moist should the growing medium remain?: Evenly moist, like a wrung-out sponge. Never bone dry, never muddy or standing in water.
What happens if an Inga seed dries out?: Severe drying is particularly damaging for recalcitrant seed. A shrivelled radicle usually does not recover, which is why prompt planting and steady moisture matter so much.
Can too much water damage the seedling?: Yes. Roots need oxygen, and a permanently saturated medium suffocates them and encourages rot. Aim for moisture with drainage and air, not swamp.
What soil or substrate should I use?: An airy, organic, moisture-retentive but free-draining mix — for example a quality potting mix opened up with perlite or coarse bark — in a container with real drainage holes.
How much light should a new seedling receive?: Bright but protected light while establishing: filtered light or light shade rather than harsh all-day direct sun.
When can I increase sunlight?: Gradually, as the seedling develops leaves and root mass. Add exposure in steps over a couple of weeks and watch for bleaching or scorch.
Is Inga vera native to Puerto Rico?: Yes. Puerto Rico falls within the species' native range, which extends through parts of Mexico, Central America, South America and the Caribbean.
What is Inga vera called in Puerto Rico?: Guaba. In English references it also appears as river koko, and the genus at large is often marketed under the broad name Ice Cream Bean.
Why has Inga vera been associated with coffee farms?: USDA-NRCS identifies it among the native trees traditionally used by Puerto Rican coffee producers as shade trees. Shade trees create an upper canopy above the coffee layer, influencing microclimate, soil protection, organic matter cycling and habitat complexity.
Is Inga vera a nitrogen-fixing tree?: It belongs to Fabaceae, the legume family, whose members can associate with nitrogen-fixing bacteria in root nodules. That is an ecological relationship centred on the tree's own root zone and litter — not a substitute for fertilizing a whole garden.
Does Inga vera produce edible fruit?: Inga vera has documented food use, and fruits of Inga species have traditionally been eaten fresh across tropical America. Quality varies between individual trees and growing conditions.
What part of an Inga fruit is eaten?: The soft fleshy material surrounding the seeds inside the pod — not the seed itself and not the pod wall.
Is Inga vera the same as Inga spectabilis?: No. They are separate botanical species that can differ in pod morphology, foliage, growth characteristics and distribution. Alpha Tropic sells both, identified botanically so you know exactly which one you are buying.
Is Inga vera the same as Inga edulis?: No. Inga edulis is a different species. Confusingly, the historical name "Inga vera Kunth" is an illegitimate later homonym treated in connection with Inga edulis — the accepted name for the species sold here is Inga vera Willd.
Why are several Inga species called Ice Cream Bean?: Because it is a broad commercial common name applied across the genus, based on the sweet fleshy material inside the pods. Common names are not botanical identities, which is why we list the accepted scientific name.
What do Inga vera flowers look like?: Clustered or spike-like heads of pale to white flowers with long, conspicuous stamens that give them a soft brush-like or powder-puff appearance.
What is polyembryony?: The capacity of a single seed to contain more than one embryo, and so potentially produce more than one seedling. It has been documented in research on Inga vera material.
Can one Inga seed sometimes develop more than one embryo?: Research has documented polyembryony in this species, so it can occur. It is a biological curiosity rather than a predictable outcome.
Does that mean my seeds will produce multiple plants?: No. Alpha Tropic makes no such promise and does not count polyembryony toward quantity. You receive exactly 15 germinated seeds.
How large can Inga vera eventually become?: It develops into a spreading tropical tree, so plan for genuine root and canopy space. Final size depends on climate, soil, water and management.
Can it be container-grown while young?: Yes, and container culture is the practical option outside the tropics. Step the plant up progressively and expect it to eventually want more space than a pot provides.
Can it tolerate frost?: No frost tolerance is claimed. Kew documents the species primarily from wet tropical biomes; in cold climates it needs protection from damaging cold.
How should I transplant a young Inga?: Move it at the start of the warm season, keep the root ball intact, replant at the same depth, water in thoroughly and give it a week or so of gentler light while it settles.
How quickly does it grow?: That depends on temperature, root space, moisture, nutrition and light. Warm, bright, evenly moist and well-drained conditions move a seedling along; cool, dark or waterlogged conditions stall it. No fixed growth rate is promised.
When can it fruit?: Fruiting depends on maturity, climate, space, pollination and management, and cannot be reduced to a fixed age. We do not guarantee fruiting or a first-fruiting date.

View the Inga vera – 15 Germinated Seeds | Guaba Tropical Fruit Tree listing