How to Plant Angelonia Flower Seeds
Fast Facts
- Planting season
- Spring
- Life cycle
- Annual
- Sowing method
- Direct Sow, Start Indoors
- Seed prep
- Requires Light
- Light
- Full Sun
- Water needs
- Average
- Planting depth
- 1/8 inch
- Spacing
- 8 to 12 inches
- Mature height
- 16 to 20 inches
- Hardiness zones
- 2 to 11
- Bloom season
- Spring through Summer
Ranges cover every variety in this group. Check the product page for the exact figures.
About Angelonia Flower Seeds
Angelonia Flower Seeds grow in full sun positions. Expect 16 to 20 inches at maturity. Flowering runs spring through summer. The figures below are the ones on the packets in this group; each product page carries the exact numbers for that variety.
When to plant
Plant in spring. Seed can be started indoors ahead of the season or sown straight into prepared ground once it has warmed. Hardy in zones 2 to 11 — your local frost dates decide the exact week.
Where to plant
Choose a site in full sun. Water needs are average once the plants are established. Free-draining soil matters more than rich soil; seed sown into ground that stays wet rots before it germinates. Allow 8 to 12 inches between plants so air can move between them. Plan for 16 to 20 inches of growth when you place them in a bed or border.
How to plant
Sow 1/8 inch deep, spaced 8 to 12 inches apart. This seed needs light to germinate, so press it onto the surface and firm it in rather than burying it. Water gently to settle the soil, then keep the surface evenly moist until seedlings or shoots appear. Indoor starts do best in warmth and bright light; harden the seedlings off over a week before planting out.
How to care
Keep watering average, at the base of the plant rather than over the leaves. Grown as an annual, so plan to sow again next season. Flowers appear spring through summer; cutting or deadheading regularly keeps more coming.

