Every purchase supports the work of the RHS Every purchase supports the work of the RHS
  • Mexican paintbrush 'Blue Danube' F1
  • Eventual height: 0.2m
  • Eventual spread: 0.2m

Ageratum houstonianum 'Blue Danube' F1

Mexican paintbrush 'Blue Danube' F1

RHS award of garden merit
approx 250 seeds £2.35
approx 250 seeds £2.35
Quantity
  • Position: full sun
  • Soil:
  • Rate of Growth:
  • Flowering period: June to October
  • Hardiness: fully hardy

    Quick to flower and bearing numerous heads of small, weather resistant blooms, which collectively form soft clouds of blue. Sun loving plants, ageratums are ideal for beds and containers.


    Winner of an Royal Horticultural Society, Award of Garden Merit for reliability and good performance.
    Part of the seed range produced by Mr Fothergill’s Seeds in partnership with the RHS.

  • Garden care: Sow in trays of seed compost thinly, do not cover seed with compost. Firm gently and keep moist. Cover with glass, polythene or propagator lid. Keep at approx. 20-25C. Seedlings appear 10-21 days. Remove cover when seedlings appear. When large enough transplant 5cm apart in trays. Grow on at approx. 15C. Stand outside for a few days late May (avoid frosts). Transplant 15cm apart in flowering position. Keep moist and weed free at all times. Remove dead heads to prolong flowering. Pinch out growing tip to encourage bushier plants.


  • Sow: February - April

  • Flowering: June - October

  • Approximate quantity: 250 seeds.

  • Share