Spilanthes (Toothache Plant) in Zone 6a & 6b

Spilanthes oleracea

When to plant spilanthes (toothache plant) in zone 6b

Zones 6a and 6b share the same average frost dates in our data, so this page covers both.

Method: Either: Start indoors for an earlier harvest, or direct-sow outside for less fuss. Spilanthes (Toothache Plant) tolerates either.

Start indoors	Mar 14–Mar 21
Direct sow / transplant outside	May 2–May 9
Estimated bloom	Jul 6–Jul 13 (~65 days after planting)

Spacing: 2 per square foot (square-foot-gardening spacing). Mature height: 0.5-1 ft.

Spilanthes, commonly called the toothache plant, is grown as much as a novelty edible as an ornamental. Chewing a leaf or flower bud produces a genuine numbing, tingling sensation, traditionally used to ease tooth pain.

How spilanthes (toothache plant) fits zone 6's season

Zone 6b's frost-free window runs about 173 days, from April 25 to October 15. Spilanthes (Toothache Plant) needs about 65 days from sowing to first harvest.

Good companions

No standout companions recorded yet for Spilanthes (Toothache Plant).

Where to buy spilanthes seeds

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See it growing

Search YouTube for "growing spilanthes (toothache plant)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)

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Growing Spilanthes (Toothache Plant) in USDA zone 6b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.

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