Erigeron karvinskianus

Description

Erigeron karvinskianus, also known as Mexican Fleabane, is a charming low-growing perennial that produces masses of daisy-like flowers. The blooms start white and gradually fade to pink, offering a long flowering season from May to October. Perfect for full sun locations with well-drained soil, this hardy plant grows to a height of 15–30cm and spreads up to 60cm.

PLANTING and AFTERCARE GUIDE

Best Planting Time

• Spring: Plant Erigeron karvinskianus in spring when the soil begins to warm. This allows the roots to establish before the main growing season and encourages robust flowering.
• Early Autumn: You can also plant Erigeron karvinskianus in early autumn. This gives the plant time to settle before its dormant period, supporting healthy growth the following year.

Site Selection

• Sunlight: Erigeron karvinskianus thrives in full sun for optimal flower production. It can tolerate light shade, but maximum blooms are achieved in bright conditions.
• Soil: Choose well-drained soil for Erigeron karvinskianus. The plant does not tolerate waterlogged conditions, so ensure good drainage to prevent root rot. Incorporating organic matter, such as compost, can improve soil fertility and structure.

Planting Instructions

1. Prepare the Hole: Dig a hole twice the width of the root ball and the same depth. This allows roots to spread comfortably.
2. Soil Preparation: Mix in compost or well-rotted organic matter to enhance fertility and drainage.
3. Planting: Position the Erigeron karvinskianus in the hole so that the top of the root ball is level with the surrounding soil. Backfill gently and firm the soil to remove air pockets.
4. Watering After Planting: Water thoroughly after planting to settle the soil and help the roots establish. Ensure excess water can drain away easily.

Watering Requirements

• Growing Season: Once established, Erigeron karvinskianus is moderately drought-tolerant. Water during dry periods, allowing the soil to dry slightly between watering. Avoid overwatering, which can harm the roots.
• Dormant Season: Reduce watering during dormancy. Only water if the soil becomes excessively dry.

Feeding

• Spring: Apply a balanced fertiliser in early spring to give Erigeron karvinskianus a strong start to the growing season.
• Mid-Summer: A light feed during mid-summer can encourage continued flowering and maintain vigour.

Pruning

• Deadheading: Regularly remove spent flowers to prolong the blooming season and maintain a tidy appearance.
• Autumn Pruning: After flowering finishes, trim Erigeron karvinskianus back lightly to tidy the plant and prepare it for the next growing season.

Mulching

• Spring: Apply a layer of mulch around the base to retain soil moisture, suppress weeds, and regulate soil temperature.
• Winter: Mulching helps protect the roots from cold and prevents frost damage, ensuring the plant survives through winter.

Supporting the Plant

• Staking: Erigeron karvinskianus is a low-growing, spreading plant, so staking is usually unnecessary. In exposed or windy locations, you may provide light support.

Final Tips

Erigeron karvinskianus is a low-maintenance perennial that adds charm and colour to gardens, containers, or borders. By planting it in full sun with well-drained soil, watering correctly, and following this care guide, Erigeron karvinskianus will reward you with a long-lasting display of flowers from spring through to autumn.

 

RHS Details

See more Erigeron from Proctors