Arabis

Common name: Rock Cress

 

A perennial cushion-like plant with white or pink, cross-shaped flowers, suitable for growing in a rock gardens or alpine house.

The leaves are grey-green and the small white / pink flowers are produced from February to June.

It is a low growing, semi-deciduous plant that grows to around 200 mm high, (8”) and has a spread of around 600mm (2ft), and some varieties can be quite invasive.

It will thrive in a well drained alkaline soil.

Cultivation notes:

Week 25: Sow seed into a proprietory seed compost and germinate at 16°-20°C (61°-68°F)

Prick out the seedlings when they are large enough to handle, and place them in a coldframe to harden off until planting out time.

Circa week 30: Plant out the plants 300-500mm (12"-18") apart in full sun in well-drained soil.

(Plant the plants no deeper than they were when growing in containers.)

Prior to planting prepare the area with a light application of organic fertiliser.

After planting apply a dusting of lime on top of the soil around the plant, then cover with a 75mm (3") mulch of organic compost.

Water well on completion.

Week 36: Cut / Shear plants hard back after flowering.

If more stock is required lift, divide, and replant the divisions now.





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