How to Grow Ageratum

Ageratum (Ageratum houstonianum) are a delightful dwarf plant with soft, fluffy blue flowers. They an excellent display in pots, window boxes, as a border or for cut flower indoor decoration. Great for attracting bees to the garden.

Full sun to part shade

Regular watering

Well drained soil

Suitable for all climatic zones

How to grow ageratums in a garden

Step 1

Fill starter pots or trays with Yates Seed Raising Mix. Sow seeds, cover, firm down and water well. Keep the soil moist so the seeds don't dry out.

Step 2

Water gently and keep moist through germination period.

Step 3

While the seedlings are growing, choose a spot in the garden that receives full sun to part shade and prepare the planting area well by digging in Yates Dynamic Lifter Soil Improver & Plant Fertiliser.

Step 4

Allow the seedlings to grow to at least 7 cm before transplanting.

Step 5

When transplanting them into your prepared garden bed, ensure seedlings are well spaced – at least 15 to 20cm apart. Water in well.

Step 6

Mulch with an organic mulch, such as bark chips, sugar cane or pea straw.

Step 7

Feed every 1 to 2 weeks with Yates Thrive Roses and Flowers Liquid Plant Food.

How to grow ageratums in a pot

Step 1

Choose a pot at least 200mm wide and deep. Position in full sun to part shade.

Step 2

Fill the chosen pots with quality potting mix, such as Yates Potting Mix with Dynamic Lifter.

Step 3

Plant directly into the pot by pressing the seeds lightly into the surface of the pot.

Step 4

Water gently and keep moist through germination period.

Step 5

Feed every 1 to 2 weeks with Yates Thrive Roses and Flowers Liquid Plant Food.

Growing tips

Lightly trim back the plant after the flushes of flowers. This will encourage new growth and further flowering.
Ensure that the plant is kept lightly moist at all times and the soil is not allowed to dry out. Extra watering may be required during hot spells.