Begonia x Semperflorens-cultorum attributes

Size

15 – 30 cm (w) x  15 – 30 cm (h)

Flowers

Late spring to first frost

Growth Rate

Fast

Origin

Sun

Maintenance

Hardiness

Caring for Begonia x Semperflorens-cultorum

When to plant

September – October

How to plant

You can start Begonias directly from seed, or indoors in seedling trays.

Do not cover the sown seeds with soil.

Keep soil constantly moist and warm during the two weeks it takes for the seedlings to emerge.

When to transplant

After the threat of frost has passed.

How to transplant

Prepare the soil with a good-quality compost, ensuring that the soil drains well but keeps moisture.

Begonias can by cut back to within 7 cms of the soil to revitalise them.

When to ferilise

Spring to autumn

How to Fertilise

Bedding Wax Begonias with a balanced, soluble fertiliser (8:8:8 or a 10:10:10) every 4 to 6 weeks. Replace the balanced fertiliser with a soluble high-potassium feed like Multifeed Flowergro 3:1:6 during the summer.

Wax Begaonias grow well rich moist soil with good drainage.

Water when the top 10mm of the soil becomes dry.

Propagating Begonia x Semperflorens-cultorum

Wax Begonias are easily propagated from leaf-tip cuttings.

Take cuttings without blooms, but has at least two nodes, and bury them in the moist potting soil mix, then leave in a warm, semi-shaded spot until new growth appears

Troubleshooting Begonia x Semperflorens-cultorum problems

Begonias are typically disease free, but some fungal problems may occur if the leaves are kept wet and the roots are kept soggy. Fungal problems include Botrytis, powdery mildew and root rot.

Pests that affect Wax Begonias include aphids, mealybugs, leaf nematodes, spider mites, snails, thrips, and whiteflies.

Benefits and uses of Begonia x Semperflorens-cultorum

  • Begonias are easy to grow and flower through most of the season.
  • They are on of the few plants that will bloom in the shady spots in your garden.
  • They make good alternatives and/or companions to impatiens and plectranthus in semi-shaded areas.

Refrences

  • Image – ‘Emperor Red’ Flower Form Jim Robbins CC BY-NC-ND 4.0
  • https://plants.ces.ncsu.edu/plants/begonia-semperflorens-cultorum-group/
  • https://www.gardenandhome.co.za/gardening/how-tos/growing-begonias/
  • https://homeguides.sfgate.com/wax-begonia-annual-care-64371.html
  • https://www.thespruce.com/grow-semperflorens-begonias-indoors-1902498