Vegetable · Basellaceae
When to plant malabar spinach
Malabar spinach is Basella, a climbing leaf crop unrelated to true spinach. It is useful in warm conditions where ordinary spinach may bolt, but it still needs a suitable water supply and space to climb.
Start seed indoors
6 weeks before
Counted from your last spring frost.
Plant out
2 weeks after
Counted from your last spring frost.
Days to maturity (estimate)
60-80
From planting out to first harvest; cultivar and conditions matter.
Choose a place for estimated dates and local climate checks.
Timing, in frost-relative terms
These offsets are the starting assumptions used by our calendar for malabar spinach. They do not establish suitability in every climate. Your seed packet, cultivar and local growing advice take priority; in frost-free places the calendar uses monthly temperature patterns instead.
- Start seed indoors 6 weeks before the last frost.
- Plant out 2 weeks after the last frost.
- Expect 60–80 days to maturity, counted from planting out.
Getting the timing right
Provide a sturdy trellis, warmth and a moisture-retentive but drained root zone. Establishment is slow in cool weather; moving planting earlier does not compensate for low temperatures. Keep stems from rooting beyond the intended bed where spread is unwanted.
Frost tolerance
Check the named variety and local forecast before exposing young growth. The catalog cold-damage figure is a reference, not a guarantee: plant age, acclimatisation, wind and the duration of a freeze affect damage.
Classified as tender, with a catalog cold-damage reference of 2°C (35.6°F)35.6°F (2°C). Exposure duration, growth stage and acclimatisation change cold tolerance.
Before you plant malabar spinach
Use the calendar to plan ahead, then check the conditions in your own garden.
- Measure the soil at sowing depth. Aim for at least 20°C (68°F); the calendar estimates soil warmth from air temperatures and cannot measure your bed.
- Check the local overnight forecast before planting out. Delay planting or keep protection ready if frost is forecast, even after the historical last-frost date.
- Harden off plants raised indoors: gradually expose them to outdoor light, wind and temperature before their final move into the bed.
- Use the maturity range on your seed packet when choosing a variety. Cold, short days and transplant stress can make harvest later than the calendar estimate.
Use warm weather and a trellis for climbing spinach
Provide a sturdy trellis, warmth and a moisture-retentive but drained root zone. Establishment is slow in cool weather; moving planting earlier does not compensate for low temperatures. Keep stems from rooting beyond the intended bed where spread is unwanted.
Pick tender leaves and shoots while retaining enough vine for regrowth. Review moisture if growth becomes tough or flowering starts during stress. Its succulent texture differs from true spinach, so trial a small amount for your intended recipes.
What to record this season
Did the warm-season vine provide tender leaves when true spinach was unsuitable? Add the cultivar, sowing date and conditions to your growing record so you can compare next season.
Further reading: NC State Extension: Basella alba . General crop guidance; local dates on this site are calculated separately. Source checked 19 September 2026 by Safe to Plant; this is not an expert review.
The reference describes plant identity and cultivation. Its regional calendar months and hardiness observations do not validate the calculated dates for another location.
How the dates are calculated and their limits · Keep a growing record · Report a local discrepancy