Mallow (High Mallow) in Zone 8a & 8b
Malva sylvestris
When to plant mallow (high mallow) in zone 8b
Zones 8a and 8b share the same average frost dates in our data, so this page covers both.
Method: Direct sow: Direct-sow outside. Mallow (High Mallow) doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | Mar 25–Apr 1 |
| Estimated bloom | Jul 13–Jul 20 (~110 days after direct-sowing) |
Spacing: about 4 square feet per plant (square-foot-gardening spacing). Mature height: 2-3 ft.
High mallow is a biennial, which puts it in a small group here: it occupies its square for two seasons and flowers in the second one.
How mallow (high mallow) fits zone 8's season
Zone 8b's frost-free window runs about 230 days, from March 25 to November 10. Mallow (High Mallow) needs about 110 days from sowing to first harvest.
Good companions
No standout companions recorded yet for Mallow (High Mallow).
Where to buy mallow seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing mallow (high mallow)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 8b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
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Growing Mallow (High Mallow) in USDA zone 8b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
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