Teucrium fruticans

Growing in Pots, Balconies & Indoors

Tree germander is a silvery-leaved Mediterranean shrub, excellent in a sunny patio or balcony pot but not a houseplant – it wants full sun, sharp drainage and airy conditions. Clippable and drought-proof, it makes a fine evergreen container specimen and can be shaped or grown informally.

Quick Details

• Container Size: 20-40 L (5-10 gal) for a shrub reaching 1-2 m
• Indoor Suitability: Not a houseplant – a full-sun Mediterranean shrub
• Best Spot: Full sun to half shade
• Soil & Drainage: Gritty, sharply drained mix; it dislikes winter wet
• Watering in Pots: Small to average – drought-tolerant; let it dry between waterings

Indoors & On the Windowsill

• Houseplant limits: Not a houseplant – it needs full sun and free-moving air to keep its silver foliage tight and healthy; indoors it grows soft and leggy.
• Overwintering: It is only half-hardy, so in cold-winter areas move the pot into a bright, frost-free, airy spot over winter and return it to full sun once frosts pass.

On a Balcony or Patio

• Light & heat: Give it the sunniest, most sheltered spot; it loves reflected heat from walls and lean, dry conditions. Clip it after flowering to keep it neat.
• Practicalities: A filled pot is heavy once watered – check the balcony can take the load, and stand it where drainage runoff will not be a nuisance.

Choosing the Pot, Soil & Long-Term Care

• Pot & drainage: A 20-40 L pot with strong drainage holes and never leave it standing in a saucer of water, or the roots rot. Terracotta breathes and dries faster; glazed or plastic holds moisture longer.
• Potting mix: A gritty, free-draining mix – potting compost with added grit, perlite or coarse sand.
• Feeding: Feed only lightly; too rich a diet gives soft growth and fewer flowers.
• Repotting: Refresh the top layer of mix and pot up roughly every couple of years; for perennials, lightly trim the root ball and top growth when you do.

Bloom & Flower Guide

Quick Details

• Bloom Season: Spring into summer, with scattered flowers at other times in mild climates
• Time to First Bloom: Once the shrub is established, within a year or two
• Flower Appearance: Pale blue to lilac lipped flowers with a prominent lower lip and long, arching stamens
• Edibility: Ornamental / none

Detailed Blooming Overview

Tree germander is a tough, grey-leaved Mediterranean shrub that flowers mainly from spring into summer, often with a scattering of blooms at other times where winters are mild. Each pale blue to lilac flower has a single, spreading lower lip and long stamens that arch out — the “four arms and a body” the grower describes — giving the bush a soft, hazy look when it is covered in bloom. Bees work the flowers readily.

Flower Characteristics

• Lipped flowers in pale blue to soft lilac.
• A broad lower lip with conspicuous, arching stamens.
• Set against silvery, grey-green foliage; drought-tolerant and bee-friendly.

Bloom Care & Thinning

• Managing the bloom: A trim after the main flush keeps the shrub dense and encourages more flowers; it takes well to clipping as a low hedge.
• Pollination & wildlife: Leave the flowers to feed bees through spring and summer.