Flowers
Dahlia 'Cactus Mixed'
Dahlia
Dahlias are tender perennials, but often treated as half-hardy annuals. They provide late season colour in the garden, often flowering well into the autumn before the first frosts hit. A regular favourite of flower arrangers for their long, sturdy stems and showy blooms. They also attract beneficial wildlife to the garden.
- Plant type
- Perennial
- Position
- Full Sun
- Height
- 1.2m
- Spread
- 60cm
Growing calendar
Sowing & growing
Feb-April, sow undercover, in trays or pots of moist seed compost. Surface sow and cover with a thin layer of soil or vermiculite. Keep at 15-20°C for germination. Transplant seedlings to larger pots when they have established 2-4 true leaves. Acclimatise plants gradually and plant 60-70cm apart when frosts have finished.
Aftercare
Supply additional support with canes. After flowering, either lift and compost if treating as an annual, or store roots in frost free conditions over the winter. In milder areas, mulch over the roots and overwinter in the ground.
Gallery
Ref. SED019