Buddleja marrubiifolia · Woolly Butterfly Bush

The plant shows a small, multi-branched woody shrub with pale, felted, silvery-gray stems and thick, ovate-to-rounded leaves that have distinctly wavy, scalloped (crenate) margins and a soft, tomentose (fuzzy) surface rather than the smooth, glossy or paddle-like succulence typical of Cotyledon orbiculata. The leaf arrangement appears opposite along woolly stems, and the overall growth habit is more shrubby/woody than the rosette-forming, velvet-textured leaves of Kalanchoe beharensis, ruling that out as well. These features—silvery pubescent foliage, wavy leaf edges, and a compact woody shrub form—are reminiscent of Buddleja marrubiifolia (Woolly Butterfly Bush), a xeric shrub often grown in conservatory succulent/desert collections. However, I can't fully rule out other gray-leaved shrubs such as Teucrium fruticans, Senecio candicans, or a Kalanchoe hybrid without seeing flowers, a closer leaf-margin view, or confirmation of leaf succulence (i.e., whether the leaves are truly fleshy/succulent or just densely hairy). A close-up of a single leaf's texture and any flower clusters would help confirm the identification.

Generated 2026-08-26 21:17 by anthropic (claude-sonnet-5).

Light

Full sun to very bright light; needs at least 6 hours of direct sun to keep growth compact and flowering well.

Water

Drought-tolerant once established; water deeply but infrequently, letting soil dry out completely between waterings. Reduce watering further in winter.

Nutrients

Light feeding with a balanced, diluted fertilizer once or twice during the growing season is sufficient; this species thrives in lean soil and overfeeding causes leggy growth.

Repotting

Repot only every 2-3 years or when clearly rootbound, as it prefers being slightly snug and resents excessive root disturbance.

Soil media

Very well-draining, gritty soil -- a cactus/succulent mix or standard potting mix amended heavily with sand or perlite.

Temp & humidity

55-90F; low humidity (below 40%) -- this is a desert/arid-adapted shrub from Texas/Mexico scrub and does poorly in humid, stagnant air.

Temperature range

🌡️ 55-90F

Humidity range

💦 <40%

Care group

🏷️ Bright & Dry

Toxicity

No known significant toxicity reported for people or pets; still sensible to avoid ingestion.

Pests & diseases

Generally pest-resistant when grown in proper sun and dry conditions; watch for root rot and fungal issues if overwatered or kept in poorly draining soil. Occasional aphids on new growth.

Propagation

Semi-hardwood stem cuttings taken in warmer months root reasonably well in a fast-draining medium; can also be grown from seed.

Generated 2026-08-26 21:24 by anthropic (claude-sonnet-5).