Often grown as an annual Ageratum can also be grown as a perennial, and this mainly depends on the climate. It is Ageratum houstonianum. These plants are native to Mexico and it is the cultivars that go under the name Ageratum ‘Ariella’ that are most widely grown.
Flowers range from white through to pink and blue in colour and these are a fast growing plant, naturally mound forming and also ling flowering.
Also known as the ‘Floss flower’ and Mexican Paintbrush these are a cool season plant in the natural environment. They will flower from late summer onwards and the feathery flowers give a soft look to the garden. In some climates they will flower from spring right through summer almost into winter. Its is when the weather cools that they begin to die back.
It is the ‘Artist’ series that will flower best through summer in warmer climates.
A number of named varieties are available including
- Artist Blue
- Ariella Wite
- Ariella Rose
- Ariella Blue
Care
To maintain flowering provide Ageratum with adequate water and plant them in a humus rich well drained soil. In warmer climates try good morning sun and a little afternoon shade in summer.
These are a plant with a shallow root system so maintian moisture over summer or any dry periods.
Deadhead spent flower heads to prolong flowering.
Top Tips for Ageratum ‘Ariella’
- Do not plant out until the danger of frosts has passed.
- Plant seedlings out once they reach around 6 – 8 cms in height. At this stage they will be more resistant to snails an slugs
- Space Ageratum at around 25 cm apart.
- Water in well with a liquid seaweed fertiliser.
- Mulch around the plants to maintain a cool moist root run.
- Liquid feed with an organic fertiliser every 3 weeks to promote strong growth.
Ageratum Plants are available for sale from the following nurseries
412 James Lane, Fern Hill VIC. 3458 - Phone 0419002651
Large range of Rare plants, Climbers, Bulbs, Perennials Fruit Trees, Ornamental Trees and Shrubs. Available both Retail and by Mail Order
www.whitehousenursery.com.au