Lonas Plant Growing & Care Guide for Gardeners

In this Gardener's HQ guide, we'll explore cultivating Lonas plants in your garden, indoor spaces, and other settings.

Golden Ageratum, Yellow Ageratum, & African Daisy: Cultivation & Garden Use

There is only one members of the Lonas plant genus

It can reach about 30 cm (1 foot) in height, and be either half hardy or hardy annuals.

The species name is lonas annua and it carries yellow flowers from summer through to autumn atop evergreen leaves.

Some of the common names for Lonas include Golden Ageratum, Yellow Ageratum and African Daisy.

Dried Ageratum are great to dry and use in flower arrangements; it is best to cut off the stems once the flowers have fully opened, then dry them ready for use.

Lonas annua
Lonas annua by Botanischer Garten TU Darmstadt; creative commons.

Lonas Plant Growing and Care Guide

Common Names: Golden Ageratum, Yellow Ageratum, African Daisy.
Family: Asteraceae.
Life Cycle: Hardy annual, half hardy annual.
Height: 10 to 12 inches (25 to 30 cm).
Native: Mediterranean, Africa.
Growing Region: Zones 2 to 8.
Flowers: Summer and autumn.
Flower Details: Yellow, gold. Clustered.
Sow Outside: Cover seed. Following last frost. Spacing 8 to 12 inches (20 to 30 cm).
Sow Inside: Germination time: one week in the dark. Temperature 70°F (21°C). Six or seven weeks before expected last frost. Transplant outdoors following the last frost.
Requirements: Full sunlight. Good drainage. Light soils. Average soils. Deadhead.

How to Grow Golden Ageratum and other Lonas Plants in the Garden

If planning to grow Golden Ageratum and other Lonas outdoors from seeds then sow after the last frost of spring. Once sown simply cover the seeds. Golden Ageratum likes to grow in sunny areas that have good drainage and a light soil.

Lonas Plants can be started indoors. The growing process should be started about 7 or 8 weeks before due to be transplanted after the last frost of spring.

The seeds should be germinated in the dark at about 21 degrees centigrade (70°F); this process should take about a week. Once ready, transplant the young golden Ageratum about 15 to 30 cm (1 to 2 feet) apart.

Caring for Golden Ageratum - Lonas plants

Golden Ageratum are easy to maintain. They should be dead headed when flowers have finished to prolong blooming. It is important not to overfeed Lonas plants.

Common Questions

How many members does the Lonas genus have?

The Lonas genus has just one species, Lonas annua or the Annual Yellow Fleabane.

Do members of Lonas make a good garden or landscaping plant?

Lonas annua can be a pleasant addition to a wildflower garden or meadow landscape, adding a bright pop of yellow.

Which Lonas species are most frequently grown by gardeners?

The only species in this genus is Lonas annua, also known as Annual Yellow Fleabane.

Are members of the Lonas plant genus fragrant?

Lonas plants do not have a significant fragrance.

What is the perfect location to grow Lonas?

Lonas annua prefers full sun and sandy, well-drained soil. It is a good choice for a xeriscape or rock garden.

Is Lonas invasive in the USA, if so in which states?

Presently, Lonas annua is not considered invasive in the USA.

How do I remove Lonas plants from my garden?

To remove Lonas plants, pull them up, ensuring all roots are removed. Regular monitoring will be necessary as they can self-seed.


The Lonas genus, a member of the Asteraceae family, comprises an annual plant native to the Mediterranean region. Known for its yellow, daisy-like flowers, the plant is often used in borders and as cut flowers.

The Lonas plant thrives in full sun and well-drained soil. It requires moderate watering, especially during dry periods. Propagation is typically done through seeds, generally sown in the spring.

I hope that you enjoyed this guide on how to grow Lonas plants. You may also enjoy the following Gardener's HQ growing guides: How to grow Ambrosia artemisiifolia, Bulbinella plant, and Brachycome plants.