How to Grow Goat's Rue
Galega × hartlandii
Goat's Rue is a vigorous, spreading hardy perennial bearing soft pea-like flowers in blue-white or pink-white from June to August. Plant in full sun or light shade in any reasonable soil — it thrives even on poor ground. Space plants 75 cm apart and stake tall stems on exposed sites. Cut back spent flower stems after the first flush to encourage repeat flowering, then cut the whole plant to the ground in autumn. Divide large clumps every 3-4 years in spring to maintain vigour and prevent spreading. An excellent cottage-garden plant for pollinators.
Yearly Lifecycle
Care Essentials
Apply a balanced general-purpose fertilizer or garden compost in spring as new growth emerges. Avoid high-nitrogen feeds that promote leafy growth at the expense of flowers.
Watch For
- Aphids on new shoots in spring
- Powdery mildew in dry conditions
- Slugs on emerging growth
Companions
Geranium (Cranesbill), Achillea, Salvia nemorosa, Persicaria
Pet Safety
Care Requirements
Light
Full sun to light shade
Grows best in full sun but tolerates partial shade well. In hotter climates, light afternoon shade helps prevent wilting. Avoid dense shade where flowering will be reduced.
Watering
Low; drought-tolerant once established
Water regularly in the first season to establish. Once settled, Goat's Rue tolerates dry periods well. It naturally grows in moderately moist to well-drained soils and does not need irrigation once established.
Fertilizing
Light feed in spring only
Apply a balanced general-purpose fertilizer or a thin layer of compost in spring. Goat's Rue is not a heavy feeder and fixes nitrogen like other legumes — avoid rich feeding which produces lush foliage at the expense of flowers.
Pruning
Deadhead after first flush; cut to ground in autumn
Remove spent flower stems after the first flush to encourage a second wave of blooms. In autumn, cut the entire plant back to near ground level once foliage has died back.
Spacing
75 cm apart
Space plants 75 cm apart to allow for their spreading habit. Plants spread freely and may need dividing every 3-4 years to prevent overcrowding neighbouring plants.
Support
May need staking on exposed sites
Tall stems (up to 150 cm) can flop in wind or rain on open sites. Place stakes or pea sticks around emerging growth in spring before stems get too tall.
Spacing & Planting
| Plant spacing | 75 cm |
| Row spacing | 90 cm |
| Mature height | 150 cm |
| Mature spread | 90 cm |
Space 75 cm apart; plants spread freely and form large clumps. May need staking on exposed sites.
