When to Plant Sweet Peas: Mid-February Indoors, Early March Outdoors

Sweet peas (Lathyrus odoratus) are classic cool-season flowers. Timing is everything for strong vines and abundant, fragrant blooms.

North Georgia / Similar Climates

• Mid-February: Start seeds indoors (or in a protected cold frame).
• Early March: Direct-sow seeds outdoors in the garden.

Outdoor Planting Tips

1. Site: Full sun, well-drained soil, near a trellis, fence, or teepee.
2. Depth: Plant seeds 1 inch deep.
3. Support: Install 3-ft branches or netting at planting time.
4. Frost protection: Keep black plastic handy to cover young seedlings on freezing nights.

Container Option

Plant seeds 1 inch deep just inside the rim of a large pot. Use 3-ft twigs to make a teepee for climbing. Move the pot to a garage/shed only on the coldest nights.

Sweet pea flower – worth the early start for its unforgettable fragrance.

Why Early Planting Matters

• Sweet peas need cool weather to develop strong roots before flowering.
• Heat shuts down bloom production.
• Early start = longer bloom season (April–June).

Soak seeds overnight before planting to speed germination. Don't wait—mid-February to early March is your window.