Top 5 Summer-Flowering Bulbs for UK Borders

England's false spring demands patience. Plant these five bulbs in May for a color-guaranteed summer. All available soon at nurseries.

1. Acidanthera (Peacock Orchid)

White, gladiolus-like, scented. Wait until May—cold kills early plantings. Rich, sunny soil. 4–6" apart, 4" deep (deeper = frost insurance). Lift autumn. Store cool/dry (shed/greenhouse)—heat rots them.

2. Allium giganteum

Huge mauve star-balls. Low maintenance if: gritty, well-drained soil + rich compost. Sow spring or plant offsets autumn. 7" spacing and depth. Cold frame/greenhouse start ideal.

3. Convallaria majalis (Lily of the Valley)

Sweet-scented, clump-forming groundcover. Rich humus/chalk/silt mix for drainage. 7" spacing. Once established, near-zero care. Early spring carpet.

4. Gladiolus

Dame Edna's favorite. Bold spikes, rainbow colors. 4–5" depth/spacing. After last frost. Extra mulch = slower emergence (insulation working). Lift autumn unless very mild.

5. Tigridia (Mexican Shell Flower)

Exotic speckled blooms. Sandy fertile soil, full sun, 4" deep. Tender—lift post-flowering. Store in dry sand at 10°C. Replant post-frost.

Universal Bulb Wisdom

• Plant pointy end up.
• Water in well.
• Label varieties.
• Feed with high-potash liquid at shoot emergence.
• Let foliage die back naturally—feeds next year's bulb.

May planting. Summer glory. Autumn lift. Repeat.