Evengrow

Grow guide

How to grow Cardinal Flower

Lobelia cardinalis

Type
Perennial flower
Zones
USDA zones 3–9
Sun
Partial
Time to harvest
365–548 days
Spacing
18″ apart
Density
1 per sq ft
Habit
Upright
Frost tolerance
Hardy
Sowing
Start indoors, then transplant
Start indoors
8 weeks before last frost

Care

  • Water 2x/week in season
  • Deadhead As needed
  • Mulch Annual

Notes

Blazing red 2-3 ft spikes July-September; primary ruby-throated hummingbird nectar plant; surface-sow seeds needing light; blooms year 2 from seed.

More perennial flower varieties

Grows well nearby

Track Cardinal Flower from seed to harvest with Evengrow.

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