Ageratum houstonianum - Floss flower

continental : We suggest to place The Ageratum houstonianum where it is exposed to direct sunlight.
Avoid to expose these plants to frost. In winter replace them in the apartment or in the hothouse.

alpine : Place The Ageratum houstonianum in a location exposed to direct sunlight.
The Ageratum houstonianum does not tolerate cold, not even slight frosts which would damage the aerial part; for this reason it is suggested to grow them in a pot, so that they can be placed in a sheltered location during autumn and winter.

mediterranean : These plants need to be exposed to direct sunlight; in summer they can be exposed to a slight shadow without any problem.
These plants can not tolerate frost; therefore remember to cover their aerial part with frost cloth during very rigid winters.

Feed Ageratum houstonianum : These plants need regular fertilizings, to obtain a beautiful foliage and generous blooms. It is advisable therefore to add a slow-release fertilizer to the soil in which they will be planted, and later on use a fertilizer to be dissolved in normal waterings, every 10-15 days.

continental : Give very regular waterings; all year long the soil shall be kept humid, however avoiding dangerous stagnations. Increase waterings in summer and decrease them when autumn starts.

alpine : We suggest frequent and generous waterings, so that the soil remains mostly humid all year long. It is possible to decrease waterings in winter.

mediterranean : It is advisable to give regular waterings, specially during spring and summer; before giving again water make sure the soil is dry.

Adversity Ageratum houstonianum : Apply a precautionary treatment against fungal diseases at the end of winter; later on treatments will be applied only in case parasites are on the plant, trying to use specific products and not broad-spectrum ones. In any case avoid treatments during bloom for not injuring the pollinating insects.