How to Grow Pumpkin 'Kakai' for Edible Seeds
By The Diggers Club - Australia's No.1 Gardening Club | Published: 2026-10-18
Category: How-to Guides
Learn how to grow Pumpkin 'Kakai' for hull-less seeds you can eat raw or roasted. This guide covers sowing, spacing, care, and harvesting for a productive organic crop.
Quick answer
Pumpkin 'Kakai' is an organic variety grown specifically for its hull-less seeds, or pepitas. Sow seeds in spring after frost, space vines 1m apart, and expect harvest in about 18 weeks. Each fruit yields roughly 250g of seeds you can eat raw or roast.
Why Grow Pumpkin 'Kakai' for Seeds
Most pumpkins produce seeds with tough hulls that need shelling, but Pumpkin 'Kakai' is different. Its seeds are hull-less, meaning you can scoop them out and eat them straight away, raw or roasted. This makes it a practical choice for gardeners who want a nutritious snack without extra processing. The compact vines also suit smaller spaces, with 1m spacing between plants.
Step-by-step growing guide
- Sow seeds after the last frost: Plant Pumpkin 'Kakai' seeds directly in warm soil, 2-3 cm deep, after all frost danger has passed. In most climates, this means mid-spring. If your season is short, start seeds indoors 3-4 weeks earlier. Common mistake: sowing too early in cold soil can cause seeds to rot. Wait until soil temperature reaches at least 18°C.
- Space vines 1m apart: Give each plant about 1m of space in all directions. Although the vines are more compact than many pumpkins, they still need room to spread and for air to circulate around the leaves. Overcrowding reduces airflow and increases the risk of powdery mildew. Stick to the recommended spacing.
- Water consistently at the base: Keep the soil evenly moist, especially during flowering and fruit set. Water at the base of the plant rather than overhead to keep leaves dry and prevent fungal diseases. Checkpoint: if leaves look wilted in the morning, increase watering frequency. Drip irrigation or a soaker hose works well.
- Harvest fruits after 18 weeks: Pumpkin 'Kakai' is ready about 18 weeks from sowing. The fruit should be fully coloured and the stem will start to crack. Cut the fruit from the vine, leaving a few cm of stem attached. Don't wait too long after the stem cracks; overripe fruit can rot on the ground. Harvest before heavy frost.
- Scoop and prepare the seeds: Cut the pumpkin open, scoop out the seeds, and rinse off any pulp. The hull-less seeds can be eaten raw immediately or spread on a tray and roasted at 160°C for 10-15 minutes for a crunchy snack. Common mistake: roasting at too high a temperature can burn the seeds. Keep an eye on them and stir halfway through.
Product facts
- Pumpkin 'Kakai' (Organic): Grow your own hull-less seeds or pepitas for a nutritious snack. Simply scoop out the seeds and eat raw or roast in the oven. Compact vines can be planted with 1m spacing. Harvest in 18 weeks, 5 fruit per plant, 250 g of seed per fruit. Knowing the yield and seed weight helps you plan how many plants you need for your desired snack quantity. Compact vines also make this variety suitable for garden beds or large containers.
