Will my fruit look exactly like the photos?

Not necessarily. This is Caribbean seed stock, not a uniform cultivar, so shape, size and skin vary.

Can I grow it on a trellis?

Yes, on a strong support. Sling heavy fruit so it doesn't pull the vine down.

1
Sowing
Sow 2–3 seeds per hill about 1 inch deep in warm, compost-rich soil.
2
Germination
Keep evenly moist; sprouts usually appear within 5–10 days.
3
Seedlings
Thin to the strongest one or two per hill and protect from beetles.
4
Transplant or direct sowing
Direct sowing is best. Pot-started seedlings should be transplanted young with roots intact.
5
Vine establishment
Mulch, give 10–20 feet of running room, or train onto a sturdy fence.
6
Nutrition and watering
Water deeply at the base and side-dress with compost as vines lengthen.
7
Flowering
Male flowers usually come first; female flowers with a tiny fruit behind them follow.
8
Pollination
Bees pollinate in the morning. If fruit set is poor, hand-pollinate with a male flower.
9
Fruit set and development
Pollinated fruit swells steadily; keep it off wet soil and water through fruit fill.
10
Harvest
Harvest when the rind is hard and the stem dry; cure about a week before storing.

Likely cause: Cold or waterlogged soil.

Fix: Wait for warm soil and improve drainage.

Likely cause: Only male flowers yet, or poor pollination.

Fix: Wait for females and hand-pollinate in the morning.

Likely cause: Incomplete pollination or water stress.

Fix: Hand-pollinate and water deeply.

Likely cause: Powdery mildew.

Fix: Improve airflow, water at the base and remove badly affected leaves.

Likely cause: Vine borer or root damage.

Fix: Inspect the base of the stem; bury nodes along the vine to encourage extra roots.

Will my fruit look exactly like the photos?: Not necessarily. This is Caribbean seed stock, not a uniform cultivar, so shape, size and skin vary.
Can I grow it on a trellis?: Yes, on a strong support. Sling heavy fruit so it doesn't pull the vine down.