How to grow Summer Snapdragon

Angelonia angustifolia

Full Sun
OR
Partial Sun
Medium

In temperate areas (outside of zones 9-11), it can be grown as an annual or in a container to be brought indoors in colder zones.⁴

Angelonia should have regular watering for best performance, but established plantings are moderately drought tolerant. Allow the soil to dry out between waterings.⁴ Propagate by tip cuttings, division of the root mass, or collected seed. For tip cuttings, use a rooting hormone, bottom heat and high relative humidity. Start cuttings about 6 weeks before the first fall frost. They should be well-rooted within 2 to 3 weeks. Do not overwater, as it is quite drought-tolerant – allow the soil to dry out between waterings⁴.

Root divisions may be made in late summer by simply digging and cutting apart the root mass. These clumps of roots can be potted into 1-gallon containers and over-wintered indoors for replanting in the garden after the last spring frost. Be sure to keep plants in the sunniest and warmest area indoors. Once flowering has ceased, cut the plants back by one half, and allow the soil to dry briefly between waterings during the winter.

For container growing, use at least a 3-gallon (ie, 10 inch/25 cm/10 litre) pot, with good drainage holes and stone chips at the bottom.

Growing Summer snapdragon from seed

These seeds need light to germinate, and take 7 to 14 days for seedlings to appear. For a head start, sow seed indoors at 70-75 F (21-24 C), 6-8 weeks before the last expected spring frost. Only low light is required for seed germination, but once the seedlings are up, they need a high light level in order to not become leggy.

By our calculations*, you should look at sowing Summer snapdragon about 75 days before your last frost date .

Transplanting Summer snapdragon

Propagate angelonia from tip cuttings, by division of the root mass, or by seed. Takes about 4 weeks to root from cuttings.

Plant out rooted cuttings at 6-18 weeks. 1 cutting for small size pots (4"-6"/10cm-15cm), 2-3 cuttings for big size pots (8"-10"/20cm-25cm).

May require a total of 13 to 14 weeks from sowing from seed, before the first flowers can be expected. Pinching back the seedlings will help improve plant compactness and branching. Seedlings should be fertilized with a liquid fertilizer. ¹

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Summer snapdragon is a half hardy plant.

Seed Saving Summer snapdragon

Angelonia seeds are small and can be harvested from seed pods in late summer, dried, and stored in envelopes to plant the following spring ¹.

How long does Summer snapdragon take to grow?

These estimates for how long Summer snapdragon takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.

Days to Germination How long does it take Summer snapdragon to germinate?: 14 days
Average 14 days | Min days | Max days (0)
Days to Transplant How long until I can plant out Summer snapdragon?: + days
Average days | Min days | Max days (0)
Days to Maturity How long until Summer snapdragon is ready for harvest / bloom?: + 100 days
Average 100 days | Min 7 days | Max 56 days (3)
Total Growing Days How long does it take to grow Summer snapdragon?: = days