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Flowers - Perennials (J to L)

Perennials (A - C)
Perennials (M - O)

Perennials (D - F)
Perennials (P - S)

Perennials (G - I)
Perennials (T - V)

Perennials (J - L)
Perennials (W - Z)

Switch To Annuals     Main Flower Index

Unless otherwise noted, the following guides are for growing perennials from seed, and general care.

Jacob's Ladder [Polemonium caeruleum]
Zone 3 - 9
Light: Partial Shade / Shade
Planting Date: Spring / Fall

A delicate combination of apricot and lilac flowers on rich green foliage. Blooms are produced in great quantity, often covering the plant for long periods. Excellent choice for the perennial border. Prefers shade. Flowers June-August. Height 20 inches.

Start inside 8-10 weeks before planting out. Cover seed lightly, provide warmth; 21°C (70°F) and seed should germinate in 2-3 weeks. May also be directly seeded into the garden in early spring or early autumn. Transplant in spring into a part shade location, 18" apart. Will only tolerate full sun in areas with cool summers. Prefers cool, moist, rich soil. Water during dry spells. Cut back after flowering. Divide in spring every 3-4 years, carefully as roots are very fragile. Deadhead to prolong blooming. Makes a great cutflower. Self-seeds.

Knautia - Melton Pastels [Knautia macedonica]
Zone 4 - 7
Light: Full Sun
Planting Date: Spring / Fall

Blooms are reminiscent of clover or scabiosa, in blooms of blue, mauve, red, pink, and salmon shades. Strong tall stems add an airiness to the perennial border, and are very useful as a cutflower. Deadhead to promote a second flowering. Prefers full sun. Height 48 inches.

Also known as "Mars Midget". Sow onto a moist seed sowing soil. Cover lightly with vermiculite and propagate at 18 to 20°C (65-70°F). Germination should begin to take place after about 10 days. Grow the seedlings on in as cool a temperature as possible and shade from extremes of direct sunlight. Plant out in June (or after last frost date), 12-18" apart, into average, well-drained soils, in full sun. Prefers neutral to alkaline soils. Locate in areas protected from wind. Promptly remove spent flowers to promote additional bloom. Plants perform best in climates with cool summer nights. May be direct seeded into garden in early autumn. Makes an excellent cutflower.

Lupins [Lupinus polyphyllus]
Zone 4 - 9
Light: Full Sun to Light Shade
Planting Date: Spring / Fall

This popular and colourful perennial blooms throughout June and July. Tall graceful spikes in shades of red, yellow, rose, and blue. Lupins grow nicely in acidic soil. Height 2-3 feet.

Start inside 6-8 weeks before last frost in peat pots. Chip seeds or soak in warm water for 24 hours before sowing 1/8 inch deep. Provide cool temperatures; 13-18°C (55-65°F) and seed should germinate in 1-2 weeks. May also be direct seeded in very early spring or late fall. Frost will help break the hard seed coat. Transplant outside after last frost into full sun or light shade 12-18 apart. Plant in groups for best show. Water and deadhead regularly. Feed with a low-nitrogen, high-phosphorus fertilizer. Do not disturb once planted. Lupins are short-lived (3-4 years), but they self-seed reliably although the new plants often revert to blue.

Lychnis [Lychnis chalcedonica]
Zone 3 - 10
Light: Full Sun
Planting Date: Spring

Hardy heirloom plant is also known as Jerusalem Cross. This very old perennial proved itself in our trials once again. This is an eye-catching and easy to grow perennial that deserves a place in every garden! Leafy plants bear striking clusters of 1 inch flowers in a flaming red. Height is 24-36 inches. Blooms mid-summer.

Sow seed indoors 8-10 weeks before planting out. Press seeds lightly onto the soil surface. Do not cover seeds with soil as they require light to germinate. Cover pots with plastic bags and place in refrigerator for 2 weeks. Remove from fridge and provide light and room temperature 70°F (21°C) thereafter. Grow in full sun, in moderate to dry soil. Lychnis does not like the combination of heat and high humidity. Shearing plants after flowering may result in a second bloom in autumn.

All flowers listed on this page are available from Veseys.
USA Gardener Recommends Veseys Seeds & Bulbs For Great Results.


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