They usually have a burst in growth after the summer heat kicks in. The most hardy to try is Begonia grandis subsp.
The best time to plant begonias is after the chance of frost has passed.
When can you plant begonias outside. Or else let the plant dry out once you have brought it indoors. Angel wing begonias grow between 12 to 20 30 50 cm tall and up to 24 60 cm wide. Within a day of purchase plant seedlings about 12 inches apart.
Hardy tuberous begonia can be an exotic addition to shady borders particularly in late summer. Plant tubers 5-75cm 2-3in deep in reasonably fertile well-drained soil and in a sunny sheltered position. In northern areas this will be late May to early June.
Plant them outdoors in late spring after the soil is warm and all danger of frost has passed. Some calendars recommend a few garden duties specially concerning hardier plants and indoor sowing for 60 days before the afore-mentioned last date. When you get within about 2 weeks of the typical last frost date in your area start moving the pots back outdoors for increasing amounts of timeperhaps 2-4 hours for 3-4 days then 4-6.
Then you can move them outside when the weather warms up after any danger of frost has passed and nighttime temperatures have stabilized to 45F or more. Ideally begonias will grow best if they arent exposed to overnight temperatures below 60 degrees. As far as growing rexes outdoors while your conditions are somewhat different from mine I would think you could grow them outside just fine after frost chances are over as you say.
If you live in a cool climate its best to hold off planting begonias outdoors until the soil is 60F and the nights are relatively warm. They are tender to the cold so should be planted in the spring after the danger of frost has passed. Evansiana AGM which is hardy down to 0C 32F.
Begonia temperature needs Begonias grown outside will be sensitive to spring cold snaps so be careful that you dont plant them outside too early. In zones 9 and 10 Begonias can be planted immediately outdoors. Position in sun or partial shade.
I grow most of mine outdoors. Be sure theyre in shade and in a cooler part of the yard–they dont care much for heat. Besides do angel wings begonias like sun.
Select a planting site for your begonias in partial shade. So even if you cant get a begonia to bloom indoors there is still plenty of interest from the foliage. If you live in a region that doesnt experience freezing winter temperatures or frosts keep the begonia tubers in the ground year-round.
Feed containers every week with high potassium feed during the summer. In that case you could place your sprouting begonias in a not so cold coldframe but not outside. This is especially true if the begonia plants are not hardened off.
Water regularly during dry periods but avoid wetting the foliage. Many angel wing begonia cultivars have polka dot leaves with toothed edges. Begonias can be transplanted to the flower garden in late spring as soon as the danger of frost has passed.
This way mimics their natural cycle of winter dormancy. Begonias are tropical plants and they need warm soil. Once the temperatures get too low for your chosen cultivar you can bring them indoors because most begonia cultivars wont successfully overwinter outside of zones 9 and 10.
Begonias arent a hardy plant and can be damaged by cold weather. Plant Begonias in early spring once the threat of frosts has disappeared. In colder zones Starting begonia tubers indoors to give them the head start they need see above.
When can you put begonias outside. Popular and reliable wax begonia thrive in sun or shade and perform well in landscape beds or containers. Plants can be hardened off and planted outside after the danger of frost has passed.
More specifically March and April are the best months to plant your Begonias as there is less chance of frosts to appear. Old-fashioned wax begonias do great when planted in the shade. The triangular leaves can grow.
All you need is a pot some moist growing mix and a warm sunny location. Tuberous begonias will not grow in cold soil. They will thriveeven bloom depending on.
A cane begonia with pink flowers in the butterfly garden at. Begonias are slow to get going so dont be disheartened if there arent blooms right away. Do you have horticultural fleece.
For earlier flowers the tubers may be started indoors in pots about 8 weeks before you expect to plant them outdoors. They can grow to a height of between 8 inches and 2 feet tall and will bloom until the first frost. Angel Wing Begonias will grow well under shade cloth lattice or in early morninglate afternoon sun.
Often grown in containers indoors begonias also can be grown outdoors during the frost-free months.