Last edited on 2 Nov 2026. View history
Sweet Siberian Watermelon
A variety of watermelon
How to sow sweet Siberian watermelon: Direct seed into soil or peat pots (and transplant pots directly into soil after hardening off)
Sun requirement for sweet Siberian watermelon: Plant in Full Sun
A medium round watermelon with apricot-coloured flesh, tan seeds and full, sweet flavour. It came from Seed Savers in the USA and does well in marginal melon climates. Sow in September or early October, prick out at 3 cm, and transplant at 50 cm once plants have two to four true leaves and the ground is warm.
- 0
- plantings
- 0
- harvests
- 0
- seed packets
Sweet siberian watermelon facts
Lifespan
Crop cycle
Max altitude
Optimal light
What are growing degree days?
A plant grows with warmth, not with days. A growing degree day is one day's worth of useful warmth: how many degrees the day's average temperature is above the lowest temperature the crop grows at. Add them up from planting and you know how far along the crop is, whatever the calendar says.
Say that lowest temperature is 10°C. A day averaging 17°C gives 7 growing degree days. A day averaging 8°C gives none, as it is too cold for the crop to grow. That is why the same lettuce takes about 50 days in a summer and 90 in an autumn: it needs the same total warmth either way.
For sweet Siberian watermelon, the FAO EcoCrop database gives a lowest growing temperature of 9°C and a shortest growing cycle of 50 days at its best temperature, about 750 growing degree days to a first harvest.
Where you've told us where your garden is, we use this and the weather there to predict when your sweet Siberian watermelon will be ready to harvest. We don't use it for how long a plant lives or when it finishes: we go by what members have logged for that.
Growing sweet Siberian watermelons
- Sow seeds in pots 4 weeks before planting out
- Dig compost into the bed 2 weeks before planting out
- Harden off the seedlings 1 week before planting out
- Set or refill beer traps for slugs and snails at planting out every week
- Water deeply at the base 1 week after planting out every week
- Mulch around the plants 3 weeks after planting out
- Hand pollinate the female flowers 6 weeks after planting out
- Lift fruit onto a tile or board 4 weeks before first harvest
- Cut back on watering as fruit ripens 2 weeks before first harvest
- Pick when the tendril by the fruit dries at first harvest every week
- Pull out finished plants 6 weeks after first harvest
Plant sweet Siberian watermelons with
morning glory
Video
What people are saying about sweet Siberian watermelons
Nobody has posted about sweet Siberian watermelons yet.
Sign in or sign up to post your tips and experiences growing sweet Siberian watermelons.
Who's planted sweet Siberian watermelons
Nobody has planted this crop yet.
Sign in or sign up to track your sweet Siberian watermelon plantings.Sweet siberian watermelon harvests
Nobody has harvested this crop yet.
Sign in or sign up to track your sweet Siberian watermelon harvests.Find sweet Siberian watermelon seeds
There are no seeds available to trade on Growstuff right now.
- Purchase seeds via Ebay
- Sign in or sign up to list your seeds to trade.
Ecological requirements
Data from the FAO EcoCrop database for Citrullus lanatus (Thunb.) Matsumura & Nakai
| Family / Taxonomy | Magnoliopsida Dilleniidae Violales Cucurbitaceae |
|---|---|
| Life form | herb, vine |
| Life span | annual |
| Habit | prostrate/procumbent/semi-erect |
| Optimal soil depth | deep (>>150 cm) |
| Optimal soil texture | medium |
| Optimal soil fertility | high |
| Optimal soil drainage | well (dry spells) |
| Optimal soil salinity | low (<4 dS/m) |
| Photoperiod | long day (>14 hours) |
Learn more about sweet Siberian watermelons
Resources outside Growstuff.
