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Centaurea (Cornflowers)

Cornflowers are ornamental annuals or perennials with usually rich blue to lilac, yellow or cream flowers which appear in masses throughout summer and attract numerous bees and butterflies with their seducing nectar. The are ideal for the rock garden and will thrive in any well drained soil in a sunny position. They are easily grown and will readily self-sow in a suitable spot.
Sow from autumn to early summer in any rich, well drained soil. Keep pots outside in a proteced, sunny spot. Transplant seedlings on their fourth pair of leaves.
All are USDA Climate Zone 6, if not stated differently.
20 seeds per package, if not stated differently.
Articles
Centaurea aegilophila Exclusive

Centaurea aegilophila Exclusive

12cm, an utmost showy dwarf perennial unknown in cultivation. It has a flat basal rosette of dark green leaves and rose flower heads in the center just above the ground level. Native of chalk soils in coastal areas on Cyprus and in southern Turkey. For any rich, well drained substrate in pots. Not winter hardy, keep these beautiful plants drier in winter in full sun at a minimum of some 10°C. V-VI.
10 seeds per package.

price (plus Shipping Costs)
seed package (ex Govenor's Beach, Cyprus)6285 € 5,99
seed package (ex Govenor's Beach, Cyprus)
(ex Govenor's Beach, Cyprus)
Centaurea cyanus (Common Blue Cornflower)

Centaurea cyanus (Common Blue Cornflower)

50 (80)cm, Common Blue Cornflower was native of Asia Minor in prehistoric times and has been widespread during human setteling across Europe. Today it is has become rarer for intensive crop field cultivation methods. A showy annual with rich blue (sometimes white or rose) flowers. Easily grown in any rich, well drained soil in a sunny spot. Will readily selfsow under appropriate conditions. VI-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package8171 € 0,99*
seed package
* This price is valid if a single item is ordered only. The shop will automatically assign discounts on bulk purchases. If several packages are ordered from this species, they will be merged into a single package. Please refer to our General Terms of Business.
Centaurea dichroantha (Bicolored Knapweed)

Centaurea dichroantha (Bicolored Knapweed)

70 (100)cm, Bicolored Knapweed is an utmost ornamental, very rarely cultivated perennial knapweed with bicolored flowers in pale yellowish-cream and light brownish-rose. From mountain meadows in the Alps from Austria to Italy. For any rich, well drained soil in full sun. Seeds are very scarce. VI-VIII.
10 seeds per package.

price (plus Shipping Costs)
seed package7168 € 4,99
Centaurea jacea (Brown Knapweed)

Centaurea jacea (Brown Knapweed)

25 (80)cm, Brown Knapweed is a perennial knapweeg with scale-like tan to brown bracts beneath the light purple to rose flowers. The branches have egg shaped or lanceolate, undivided leaves. European native from dry fields, meadows and roadsides in Scandinavia, Atlantic and Central Europe, North Italy, West Russia and the Balkans. For full sun to partial shade, in any well drained soil. VI-IX.
20 seeds per package.

price (plus Shipping Costs)
seed package 2580 € 4,99
Centaurea macrocephala (Yellow Bighead Knapweed)

Centaurea macrocephala (Yellow Bighead Knapweed)

100 (120)cm, Yellow Bighead Knapweed is a showy perennial species with upright stalks densely covered with yellowish green leaves and topped by a single large bright yellow flower head. Native of high elevation grasslands and subalpine meadows from Armenia to Romania. Easily cultivated in any rich, well drained soil in a sunny spot. VI-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 4803 € 4,99
Centaurea montana (Mountain Corn Flower)

Centaurea montana (Mountain Corn Flower)

30 (50)cm, Mountain Corn Flower is a very variable species from sunny mountainous meadows across Europe with hairy, grayish, lance shaped leaves and large lilac blue flowers with a purplish centre. Pleasantly strong honey fragrance. Plants from Scandinavia grow taller and have longer, narrow ovate leaves in comparison to populations from Central Europe. V-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2581 € 2,99
seed package (ex Frescati, Stockholm, Sweden)6348 € 3,99
seed package (ex Frescati, Stockholm, Sweden)
(ex Frescati, Stockholm, Sweden)
Centaurea montana f. stenophylla (Vosges Mountain Corn Flower)

Centaurea montana f. stenophylla (Vosges Mountain Corn Flower)

25 (40)cm, Vosges Mountain Corn Flower is a rare, smaller form from sunny, steep grassy slopes in the Vosges (France) with hairy, grayish-green, lance shaped leaves and lilac blue flowers with a purplish centre. Pleasantly strong honey fragrance. Easily cultivated in any rich, well drained soil in full sun. VI-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 4648 € 4,99
Centaurea nigra ssp. nemoralis

Centaurea nigra ssp. nemoralis

50 (70)cm, ornamental subspecies with deep purple flowers. For full sun to partial shade, in any well drained soil. VI-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2582 € 3,99
Centaurea nigrescens (Tyrol Knapweed)

Centaurea nigrescens (Tyrol Knapweed)

60 (90)cm, Tyrol Knapweed or Vochin Knapweed is an ornamental species with deep purple flowers. For full sun to partial shade, in any well drained soil. VI-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2583 € 3,99
Centaurea parlatoris

Centaurea parlatoris

40 (80)cm, a multibranching perennial species native of mountains in Sicily (Italy). It has narrow, linear leaves and several terminal, bright lilac-pink flower heads. For any rich, well drained soil in a protected spot in full sun. V-VI.
20 seeds per package.

price (plus Shipping Costs)
seed package8325 € 4,99
Centaurea phrygia ssp. pseudophrygia

Centaurea phrygia ssp. pseudophrygia

60 (85)cm, light purple pink cornflowers on loose branches. For a sunny site in any rich, well drained soil. VI-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2584 € 3,99
Centaurea rhenana (syn. Centaurea stoebe)

Centaurea rhenana (syn. Centaurea stoebe)

30 (45)cm, rose-pink flowers with a light rose to white center. For a sunny spot in any rich, well drained, rocky soil. VI-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2586 € 4,99
Centaurea rupestris

Centaurea rupestris

30 (50)cm, makes pure yellow flowers above narrow pinnatisect leaves. Native of the Balkan through Italy growing in dryish, stony grassland. For a sunny site with a deep, well drained soil. VII-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2587 € 3,99
Centaurea scabiosa (Great Knapweed)

Centaurea scabiosa (Great Knapweed)

45 (70)cm, Great Knapweed has nice purple, large Scabiosa like flowers. Full sun to partial shade in any well drained soil. VII-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2588 € 4,99
Centaurea uniflora ssp. nervosa (Singleflower Knapweed)

Centaurea uniflora ssp. nervosa (Singleflower Knapweed)

30 (50)cm, Singleflower Knapweed is a perennial species with showy, quite large single, pale lilac flower heads on upright stems above lanceolate leaves. Native of montane areas in Southern Europe. Easily cultivated in any rich, well drained soil in a sunny spot. VI-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package 4804 € 4,99