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Gladiolus (Gladiole)

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Gladiolus comprises some of the most beautiful and easy to cultivate flowering bulbs, preferring rather inorganic soil which should be kept rather dry in winter and moist in spring and summer. Some are winter growing in nature (several South African species) and will lose leaves at low temperatures in winter, but will emerge again in late spring. Species with a hardiness of USDA 7 or 8 are best cultivated as pot plants in a cool greenhouse or wintergarden, thus they will prove as free flowering. All species with a hardiness of USDA 6 are fully winter hardy in Central Europe without any additional winter protection.
Sow at some 10°C preferably in spring (in pots outside) or autumn (in a cool and frosfree greenhouse). Keep pots under cool, yet frostfree conditions and soil always slightly moist. Most Gladiolus seed require a prolonged cooling period for several months before they will germinate with raising temperatures in late spring. Several species tend to have a hypogeal germination, i.e. they make a small corm underground in the first year before the first leaf will emerge in the second year. Pot cultivation for two years before passing on to the open garden, plant bulbs rather deep (some 15cm) to protect them from freezing through. In winter apply some dry mulch layer as additional protection measure. If plants are cultivated in pots, keep them in a cool, yet frostfree spot during winter. Winter dormant species may be placed in shade and soil can be kept rather dry, wintergreen plants require careful watering and full sun.
20 seeds per package.
Articles
Gladiolus abbreviatus

Gladiolus abbreviatus

40 (60)cm, makes salmon red to orange flowers with very short green to blackish lower petals. For any rich, well drained soil Requires a good winter protection (e.g. thick mulch layer), better in pots in an unheated wintergarden or a cold greenhouse. USDA Climate Zone 8. VI-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2965 € 4,99
Gladiolus angustus

Gladiolus angustus

25cm, makes long-tubed white or yellow flowers, the lower lobes show dark red or purplish red markings. Very easily cultivated. For any rich, well drained substrate in full sun. Requires a good winter protection (thick mulch layer), preferably grow in pots under frostfree conditions in a cool wintergarden or greenhouse. VII-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2967 € 5,99
Gladiolus appendiculatus

Gladiolus appendiculatus

40 (60)cm, makes rather long leaves and white to pale rose flowers with dark rose spots on the lower tepals. For any rich, well drained substrate in a sunny spot. Preferably grow in pots under frostfree conditions in an unheated wintergarden or greenhouse. During dormancy reduce watering to a minimum. V-VI.
20 seeds per package.

price (plus Shipping Costs)
seed package9543 € 4,99
Gladiolus brevitubus

Gladiolus brevitubus

30cm, a medium sized species with narrow leaves and rich orange flowers. For any rich, well drained substrate in a sunny spot. Preferably grow in pots under frostfree conditions in an unheated wintergarden or greenhouse. During dormancy reduce watering to a minimum. V-VI.
20 seeds per package.

price (plus Shipping Costs)
seed package9545 € 7,99
Gladiolus carneus

Gladiolus carneus

1m, variable colored flowers, either white to mauve with or without markings. Outstanding and easy species. Für any rich, well drained substrate in full sun. Require a good winter protection (e.g. thick dry mulch layer), preferably frostfree cultivation in a cool wintergarden or unheated greenhouse. USDA Climate Zone 8. VI-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2970 € 4,99
Gladiolus crassifolius

Gladiolus crassifolius

1m, native from E Cape to Lesotho and Zimbabwe at 2.500m. Makes pink to mauve flowers with darker markings. USDA Climate Zone 7. III-IV.
20 seeds per package.

price (plus Shipping Costs)
seed package 2974 € 7,99
Gladiolus cunonius

Gladiolus cunonius

30 (50)cm, a small species with narrow leaves and bright red, narrow flower tubes with a longer upper petal. V-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package 0060 € 3,99
seed package
Gladiolus densiflorus

Gladiolus densiflorus

30 (50)cm, makes several white to pale rose, small flowers with reddish spots on upright stems. For any well drained soil in a sunny spot. Requires a good winter protection (i.e. dry mulch layer). Best grown in pots under frostfree conditions in a cool greenhouse or wintergarden with reduced watering and a winter minimum of some 5°C. VII-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 4993 € 4,99
Gladiolus ferrugineus

Gladiolus ferrugineus

30 (60)cm, a medium sized, winter dormant species with channeled leaves and multicolored flowers in cream to pale pink. For any rich, well drained soil in a sunny, protected spot outside. In winter give some protection (e.g. a dry mulch layer). Alternatively grow in pots in a cool wintergarden or frostfree greenhouse, keep dormant corms dry at a minimum of some 5°C. VI-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package 1029 € 4,99
Gladiolus floribundus ssp. floribundus

Gladiolus floribundus ssp. floribundus

30cm, up to 7 firm and broad leaves, very elegant light pink to cream flowers. For any rich, well drained soil in a sunny spot. Requires a good mulch layer as winter protection or it can be grown alternatively under cold glass or in the unheated greenhouse or wintergarden. USDA Climate Zone 8. VI-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2977 € 4,99
Gladiolus gracilis

Gladiolus gracilis

25cm, slightly scented pale sky-blue flowers, a rarely seed flower color. For any rich, well drained soil in a very sunny spot. Requires a good winter protection (thick mulch layer), preferably for pots in the unheated greenhouse or wintergarden. USDA Climate Zone 8. VI-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2979 € 7,99
Gladiolus hirsutus

Gladiolus hirsutus

60cm, usually 3 hairy leaves and pink to mauve flowers with dark spots and streaks. USDA Climate Zone 8. VII-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2980 € 4,99
Gladiolus hyalinus

Gladiolus hyalinus

25 (50)cm, makes bicolored maroon red and yellow flowers on upright stems. Native of sandy to rocky soils from Namaqualand to Port Alfred. For any rich, well drained soil in a sunny spot. Requires a good winter protection (i.e. dry mulch layer). Best grown in pots under frostfree conditions in a cool greenhouse or wintergarden with reduced watering and a winter minimum of some 5°C. VII-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 4992 € 5,99
Gladiolus illyricus (Illyrian Gladiolus)

Gladiolus illyricus (Illyrian Gladiolus)

20 (40)cm, Illyrian Gladiolus is a winter hardy dwarf species native of the Mediterranean, growing in rocky, sun-exposed sites. Makes showy, quite large, dark lilac flowers with white streaks on lower petals on short stems. Easily cultivated in any rich, very well drained soil in full sun, preferably in pots under frostfree conditions throughout the year. USDA Climate Zone 8/9. IV-V.
20 seeds per package.

price (plus Shipping Costs)
seed package3508 € 2,99*
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.
Gladiolus imbricatus (Meadow Gladiolus)

Gladiolus imbricatus (Meadow Gladiolus)

30 (70)cm, Meadow Gladiolus is a fully winter hardy Gladiolus similar to Gladiolus communis, yet with larger, pink flowers. Native of the Balkans and the eastern Mediterranean region. For a sunny spot in any rich, well drained soil. Very robust and easy. USDA Climate Zone 6. V-VI.
20 seeds per package.

price (plus Shipping Costs)
seed package2981 € 4,99
Gladiolus involutus

Gladiolus involutus

40cm, a dwarf species with delicate white to pale pink flowers and a pale yellow throat. For any rich, well drained soil in full sun. Requires some good winter protection (e.g. a thick dry mulch layer), preferably culivated in pots in an unheated wintergarden or greenhouse. USDA Climate Zone 8. VI-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2982 € 4,99
seed package
Gladiolus italicus (Field Gladiolus)

Gladiolus italicus (Field Gladiolus)

100cm, Field Gladiolus has large, deep pink flowers with white stripes on the lower petals. Very similar to Gladiolus communis ssp. communis, yet the seeds of Gladiolus italicus are larger and not winged, whereas those of Gladiolus communis ssp. communis are smaller and winged. Makes dense clumps in time. Native of southern Europe and the western Mediterranean, growing in open grass land. For any humus rich, well drained soil in full sun to partial shade. Fully winter hardy in Central Europe. VI-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package2983 € 0,99
seed package
seed package (ex Germasogeia, Cyprus)6276 € 1,99
seed package (ex Germasogeia, Cyprus)
(ex Germasogeia, Cyprus)
Gladiolus longicollis

Gladiolus longicollis

50 (80)cm, 2 clasping leaves, on a single flower spike with white or creamy yellow flowers. USDA Climate Zone 7. VI-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2985 € 4,99
Gladiolus maculatus

Gladiolus maculatus

30 (50)cm, a nice species with creamy-white petals heavily dotted and marked with reddish to brownish-red spots. For any rich, well drained substrate in full sun. Requires some good winter protection (e.g. thick dry mulch layer). In colder regions preferably grow in pots under frostfree conditions in a cool greenhouse or wintergarden. USDA Climate Zone 8. VII-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package8871 € 7,99
Gladiolus meliusculus

Gladiolus meliusculus

15 (20)cm, a dwarf species with narrow, grass-like leaves and honey scented pink, salmon-red to brick red flowers and yellow lower petals edged with purple. For any rich, well drained soil in full sun. Requires a very good winter protection (e.g. thick dry mulch layer), alternatively grow in an unheated wintergarden or greenhouse. USDA Climate Zone 9. VI.
20 seeds per package.

price (plus Shipping Costs)
seed package2986 € 5,99
Gladiolus miniatus

Gladiolus miniatus

15 (25)cm,, has salmon red, pink or yellowish cream flowers with darker stripes on short upright stems. Native of coastal rocky soils from Hermanus to Agulhas. For any rich, well drained soil in a sunny spot. Requires a good winter protection (i.e. dry mulch layer). Best grown in pots under frostfree conditions in a cool greenhouse or wintergarden with reduced watering and a winter minimum of some 5°C. VII-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 4991 € 4,99
seed package
Gladiolus ochroleucus

Gladiolus ochroleucus

30 (50)cm, evergreen leaves under frostfree conditions and pale rose flowers. In the open garden, leaves will die down from freezing, yet it will usually emerge again in late spring. For any rich, well drained soil in full sun. In colder regions give some good winter protection (e.g. a thick dry mulch layer) or grow in pots in a coll, yet frostfree wintergarden or greenhouse. USDA Climate Zone 8. VIII-IX.
20 seeds per package.

price (plus Shipping Costs)
seed package 2987 € 7,99
Gladiolus oppositiflorus ssp. salmoneus

Gladiolus oppositiflorus ssp. salmoneus

80 (150)cm, native to the north-eastern Cape (Barkely Pass) and S Natal growing in moist rocky mountain grassland. Has very attractive large (10cm) salmon-pink flowers from the E Cape, growing in cliffs. V-VII.
20 seeds per package.

price (plus Shipping Costs)
seed package 2988 € 4,99
Gladiolus palustris (Marsh Gladiolus)

Gladiolus palustris (Marsh Gladiolus)

90 (120)cm, Marsh Gladiolus is native of semi-moist meadows in central and NW Europe. As the related Gladiolus communis ssp. communis it has bright pink flowers with a white throat and stripes. Very similar to Gladiolus italicus, yet the seeds of Gladiolus palustris are smaller and winged, whereas those of Gladiolus italicus are larger and not winged. In contrast to Gladiolus communis ssp. communis the winged seeds of Gladiolus palustris are about twice the size. Easily cultivated in any humus rich, slightly moist, yet very well drained soil in partial shade to full sun. Completely winter hardy in Central Europe. The seeds are from true-to-type plants. USDA Climate Zone 6. V-VI.
20 seeds per package.

price (plus Shipping Costs)
seed package 3521 € 4,99
seed package
Gladiolus permeabilis

Gladiolus permeabilis

25 (35)cm, makes small pale beige and mauve to pale mauve-green flowers on upright stems. Native of rocky soils from Caledon through South Africa and Zimbabwe. For any rich, well drained soil in a sunny spot. Requires a good winter protection (i.e. dry mulch layer). Best grown in pots under frostfree conditions in a cool greenhouse or wintergarden with reduced watering and a winter minimum of some 5°C. VII-VIII.
20 seeds per package.

price (plus Shipping Costs)
seed package 4989 € 7,99
seed package