Plant Care Guides  /  Outdoor & Coastal  /  Succulents

Blue Chalk Sticks (Senecio mandraliscae) Care Guide

Indigenous  |  Easy Care  |  Succulents

Blue chalk sticks is a low, spreading succulent with finger-like, blue-grey leaves that look as if they have been dipped in chalk dust. It is one of the most striking groundcover succulents available, forming a dense, blue carpet that contrasts beautifully with green foliage, dark mulch and rocky surfaces.

Good to know

It is completely at home in the sandy, dry, coastal conditions of St Francis Bay and handles wind, salt air, poor soil and drought without complaint. Plant it en masse on a bank, in a rockery, between pavers, or as edging along a bed, and it fills in quickly to create a seamless blue-grey mat.

Size

15 to 30 cm tall, spreading to 60 cm or more.

Growth rate

Fast for a succulent. It fills in relatively quickly.

Best uses

Groundcover, edging, rockery, bank or slope cover, between pavers, container. Mass planting for the best effect.

Light / aspect

Full sun. The blue colour is most intense in sun; it fades to green in shade.

Soil

Any well-drained soil, including poor, sandy and rocky conditions. It does not need rich soil.

Water requirements

Very drought-tolerant. Water while settling in, then it needs almost nothing. Overwatering causes it to rot.

Feeding

None needed. It grows happily in poor soil.

Pruning

Trim or thin out if it becomes too thick or straggly. Cuttings root easily, so prunings can be replanted to fill gaps elsewhere.

Common problems

Ask about availability. WhatsApp us to check what is currently in stock, or visit the nursery and we will help you choose the right plant for your spot.

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