Your opinion is important to us!

We are constantly making our site better and more user friendly for you. Any dispute, whether praise or criticism is important to us!

We welcome your suggestions!


Flat delivery fee £4.95, for all plants (excepted areas see here).
Customer service & advice: call 0845 527 1658 or email

Canadian St. John's Wort 'Gemo'

Hypericum kalmianum 'Gemo' forms many, yellow flowers from July to September

Canadian St. John's Wort 'Gemo'


Article number: 2192583


Ready to be shipped in the next 5-10 days

£9.90 *

Keep this in mind: The delivery of your entire order with us only costs £4.95! Even if you order many plants, the delivery costs will remain at £4.95. With Lubera, you do not pay for the transport per plant, but per order.


Product information "Canadian St. John's Wort 'Gemo'"

The Canadian St. John's wort 'Gemo' has small, yellow flowers that appear in large numbers from July to September. The flowers form bronze-coloured fruits, which, however, are inedible. The upright shoots are light green and are up to 80 cm high; they stand tight and thus form a width of up to one metre. The valuable summer flower is winter green, which means that the leaves remain on the plant until the spring.

Hypericum kalmianum 'Gemo' should be planted in a sunny location; the soil should be slightly acidic to strongly alkaline (up to pH 8.5). Permeable, heavy soils should be avoided. This plant is suitable for almost all sunny locations and is also absolutely tolerable towards heat.

In contrast to Hypericum patulum 'Hidcote', the Canadian St. John's wort does not freeze, even in harsh locations. In the spring, prune to 15 cm in order for strong shoots to grow. In the case of planted plants or hedges, this can be done with a hedge trimmer. This ornamental shrub is used as a low hedge, in group planting or in containers. Plants per square meter: 3 pieces.

In hedges, 2-3 plants can be planted per meter, depending on how dense the hedge should be.
Growth: Broad, upright, little branching
Final size: 80 cm high and 1 m wide
Flowers: Yellow, July to September
Leaves: Light green
Use: Group plantings, low hedges, containers
Speciality: Some leaves remain on the plant until the spring, source of food for bees
Easytip: Yes
  • Flowering Period July, August, September
  • Final height 60cm to 80cm
  • Final width 80cm to 100cm
  • Available February, March, April, May, June, July, August, September, October, November
  • Fragrance slightly scented
  • Use beds/borders, paths/rock walls/rock gardens, for containers, as a hedge, for group plantings, as a specimen plant
  • Hardiness hardy
  • Soil dry, moderately heavy, light, alkaline, slightly alkaline, neutral, slightly acidic
  • Location full sun
  • Flower Colour yellow
  • Leaf Colour green
  • Lubera Easy Tip Based on our experience in the variety tests but also in customer service, we have awarded this plant with the title “Lubera Easy Tip”. With this designation, we emphasise only those plants that according to our experience work (almost) everywhere; they are easy to grow and bear fruits or produce flowers quickly and without problems. These are plants that can be enjoyed immediately and without effort once planted.

Customer comments "Canadian St. John's Wort 'Gemo'"

Write an comment


The fields marked with * are required.


Do you want to ask a question about "Canadian St. John's Wort 'Gemo'"?

Take advantage of this form for your questions(s) about the product "Canadian St. John's Wort 'Gemo'". Your question(s) and also the answers (from the Lubera® team and other garden friends) will be published here.

Clematis 'Emilia Plater'

£10.40 * Instead of: £11.40 *

Helianthemum x cultivars 'Ben Hope'

from £3.30 * Instead of: £3.60 *

Helianthemum x cultivars 'Supreme'

from £3.30 * Instead of: £3.60 *

Antennaria dioica 'Rotes Wunder'

from £3.30 * Instead of: £3.60 *

Aster linosyris

from £3.30 * Instead of: £3.60 *

Arrowwood, Koreanspice viburnum

£19.40 * Instead of: £21.40 *

Bush honeysuckle

£12.90 * Instead of: £14.40 *

Rhododendron Hybrid 'Dolcemente'...

£24.40 * Instead of: £26.90 *

Columnar Serviceberry 'Rainbow...

from £19.90 *

Burkwood viburnum

£19.40 * Instead of: £21.40 *

Chrysopsis speciosa 'Golden...

from £5.40 * Instead of: £5.90 *

Artemisia lactiflora 'Guizhou'

from £5.90 * Instead of: £6.90 *

Garden Deal: Blueberries at half...

£77.90 *

Pink Silk Tree 'Tropical Dream'

£81.90 * Instead of: £91.40 *

Pink Silk Tree 'Ombrella'

£81.90 * Instead of: £91.40 *

Pepper Vine

£13.90 * Instead of: £15.40 *

Common White Alder 'Ruby Spice'

£19.40 * Instead of: £21.40 *

Alpine Strawberry 'Alexandria'

from £2.80 * Instead of: £3.10 *

Frost Grape, Riverbank Grape

£15.40 *

Chinese Trumpet Creeper

£14.90 * Instead of: £16.40 *

Chinese Moonseed

£12.90 * Instead of: £14.40 *

Japanese Quince 'Friesdorfer Typ...

£17.90 * Instead of: £19.40 *

Abelie 'Pinky Bells'

£19.40 * Instead of: £21.40 *

Currant Luberissima®...

£37.40 * Instead of: £41.90 *

Helenium x cult. 'Rauchtopas'

from £5.40 * Instead of: £5.90 *

Peruvian Wild Tomato

from £4.40 * Instead of: £4.90 *

American wisteria 'Amethyst Falls'®

£19.90 * Instead of: £21.90 *

American Wisteria 'Longwood Purple'

£22.90 * Instead of: £25.40 *

American Wisteria 'Nivea'

£22.90 * Instead of: £25.40 *

Amur Grape

£14.40 *

Horseradish 'Karl der Grosse'

from £5.90 * Instead of: £6.90 *

Artichocke 'Grosse Grüne'

from £5.90 * Instead of: £6.90 *

Fragrant Sumach 'Gro-Low'

£14.90 *

Portuguese Laurel 'Angustifolia'

from £14.90 *

Privet 'Argentum'

from £9.90 *

White Forsythia 'Roseum'

£21.40 * Instead of: £23.40 *

Summer Bells Tree 'Summer Bells'

£21.40 * Instead of: £23.40 *

Tamarix 'Pink Cascade'

from £19.90 *

Arrowwood Viburnum 'Blue Muffin'®

£19.90 *

Carolina Allspice 'Aphrodite'

£27.40 * Instead of: £30.40 *

Japanese Quince 'Cido'®

£17.90 * Instead of: £19.40 *

Japanese Quince 'Orange Storm'®

£17.90 * Instead of: £19.40 *

Japanese Quince 'Pink Storm'®

£17.90 * Instead of: £19.40 *

Chinese Cedar 'Flamingo'

£22.40 * Instead of: £24.90 *

Californian Lilac 'Blue Diamond'

£19.40 * Instead of: £21.40 *

Mother of Pearl Snowberry 'Magic...

£19.40 * Instead of: £21.40 *

Bloodcurrant 'Pulborough Scarlet'

£13.40 * Instead of: £14.90 *

Bloodcurrant Koja

£13.40 * Instead of: £14.90 *