Sunflowers are annuals or herbaceous perennials from open spots in prairies and sunny mountain meadows throughout North and Middle America. They develop numerous and very colorful, usually bright yellow flowers on medium to very all stalks throughout summer. Many species are excellent cut flowers. Helianthus are easily cultivated in any rich, well drained soil in a sunny spot. They are fast growing, very robust and adapt very well to various soil types.
Sow flat in any rich, well drained soil. Keep pots in a sunny , protected spot outside. Several perennial species require a cooling period of several months prior to germination. If these species are sowed late in the year, they do not germinate before spring in the following year. Transplant annuals to the final spot in the garden after the last freezing nights in late spring, perennials are best transplanted as soon as the leaves have withered in late summer to autumn.
All are USDA Climate Zone 6.
20 seeds per package.
Helianthus (Sunflower)
Articles
Helianthus annuus (Wild Sunflower)
170 (250)cm, Wild Sunflower is an annual species and parent to many garden hybrids and cultivars. The wild species is an elegant plant with an upright stems and several large, bright yellow petals surrounding a quite large brown disk. Native of south-western USA and Mexico. Either sow under glass in spring and transplant seedlings after the last freezing nights in early summer or sow directly into the ground in early summer. For any humus rich, well drained soil in full sun. VII-IX.
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| seed package 3898 | € 0,99* | ||
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Helianthus californicus (Californian Sunflower)
200 (250)cm, Californian Sunflower is a tall perennial with annual stems crowned by rich yellow flowers above lance-shaped leaves. Native of California and Baja California. For any rich, well drained soil in full sun. VII-IX.
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| seed package 6515 | € 4,99 | ||
Helianthus divaricatus (Woodland Sunflower)
120 (200)cm, Woodland Sunflower is a tall herbaceous perennial with terminal bright yellow flowers above dark green, broadly lanceolate leaves on reddish stems. Native of open spots in rich soils in woods in central USA. For any humus rich, well drained soil in full sun to partial shade. VII-X.
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| seed package 4857 | € 4,99 | ||
Helianthus giganteus (Giant Sunflower)
180 (300)cm, Giant Sunflower is a herbaceous, very variable perennial with upright stems crowned with clusters of bright yellow flowers. Native of semi-moist meadows and open spots in woods in N USA. For any humus rich, well drained soil in a sunny spot. VII-X.
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| seed package 1016 | € 4,99* | ||
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Helianthus grosseserratus (Sawtooth Sunflower)
100 (220)cm, Sawtooth Sunflower is a perennial making dense clumps in time. It bears numerous golden flowers above lanceolate to narrowly ovate leaves. Native of semi-moist soils in prairies and meadows of Illinois. For any rich, well drained soil in full sun. VIII-X.
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| seed package 3549 | € 4,99* | ||
Helianthus laetiflorus (Showy Sunflower)
170 (220)cm, Showy Sunflower is a deciduous, clump forming perennial with very tall stalks with numerous bright golden flowers above grayish green leaves. Native of rich soils in open woods and thickets in Pennsylvania to Minnesota (USA). For any rich, well drained soil in full sun. VII-IX.
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| seed package 3548 | € 4,99* | ||
Helianthus maximilianii (Maximilian Sunflower)
140 (200)cm, Maximilian Sunflower makes grayish green foliage topped by numerous bright golden flowers. It is native of meadows and prairies from Minnesota and British Columbia, south to Missouri, Texas, and Wyoming (USA). For any rich, well drained soil in full sun. VIII-IX.
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| seed package 3547 | € 4,99* | ||
Helianthus mollis (Ashy Sunflower)
90 (140)cm, Ashy Sunflower or Hairy Sunflower makes grayish green leaves and several lemon yellow flowers in late summer. This perennial is native of prairies from Ohio to Michigan and Iowa, south to Georgia, Alabama, and Texas (USA). For any rich, well drained soil in full sun. VII-X.
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| seed package 3546 | € 4,99* | ||
Helianthus nuttallii (Nuttall's Sunflower)
150 (180)cm, Nuttall's Sunflower is a herbaceous, very variable perennial with upright stems crowned with clusters of bright yellow flowers. The subspecies nuttallii is native of semi-moist meadows and wetlands in California (USA). For any humus rich, well drained soil in a sunny spot. VIII-IX.
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| seed package 3899 | € 4,99* | ||
Helianthus occidentalis (Western Sunflower)
60 (100)cm, Western Sunflower or Fewleaf Sunflower is a clump forming perennial with several rich golden flowers on slender, almost leafless stems. It is native of meadows and prairies from Florida, Georgia, and Texas, north to Ohio, and Minnesota (USA). For any rich, well drained soil in full sun. VII-IX.
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| seed package 3545 | € 4,99* | ||
Helianthus pumilus (Dwarf Sunflower)
30 (50)cm, Dwarf Sunflower is a (as the names proposes) a dwarf perennial member in this genus. It makes lanceolate, dark green, hairy leaves and short stems crowned with several showy, bright yellow flowers. It is native of rocky, sunny sites in Midwestern USA. For any humus rich, very well drained soil in full sun. VII-VIII.
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| seed package 3901 | € 4,99* | ||
Helianthus strumosus (Pale-leaf Sunflower)
170 (220)cm, Pale-leaf Sunflower is a showy herbaceous perennial with lanceolate leaves on pruplish stems and rich yellow sunflower-like, terminal flowers. This species is native of open spots in dry woods in eastern North America (Quebec to North Dakota, and from Arkansas to Oklahoma). Easily grown in a rich, well drained soil in a sunny spot. IX-X.
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| seed package 0010 | € 4,99* | ||
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