HYDRANGEA seemannii

Commonly known as Hortensia

Excellent evergreen climber for shade or north wall, flowers white
Further Reading....
  • Evergreen
    Leathery, mid-green leaves to 15cm (6in) long.
  • White
    Greenish-white flowers
  • Height
    10m (33ft)
  • Spread
    5m (26ft)
  • Climber
    Some of these climbing plants will need trellis or wire supports if grown on walls or fences. Other grow aerial roots and are self-clinging
    Woody climber clinging by aerial roots. Flowers in domed corymbs to 15cm (6in) across.
  • Half hardy - unheated greenhouse / mild winter
    Hardy in coastal and relatively mild parts of the UK except in severe winters and a risk from sudden (early) frosts. May be hardy elsewhere with wall shelter or good micro-climate. Likely to be damaged or killed in cold winters. Plant can withstand temperatures down to -5°C (23°F)
  • Full sun
    Shelter from cold winds
  • Partial shade

HYDRANGEA seemannii

 

 

  • Additional Features
    Pests & Diseases
    Red spider mites, scale insects, vine weevils, capsid bugs, grey mould(Botrytis), hydrangea virus, powdery mildew, leaf spot, honey fungus.
    Place of origin
    Mexico
  • Burncoose Specialities
    Hydrangeas
  • Hardiness
    Frost hardy (down to -5)
  • Leaf margin
    Serrulate
    		(see photos above)
  • Leaf shape
    Elliptic
    		(see photos above)
    Lanceolate
    		(see photos above)
  • Pruning group
    Pruning group 6
    Suitable for: Evergreen shrubs or climbers that need little to no pruning.
    Action: Trim back shoots that spoil symmetry and to fit available space.
    When: Annually after flowering if on previous year's growth, or in later Winter or Spring if flowering on current year's growth, or as requires.
  • Seasonal Interest
    Summer
  • Soil Conditions
    Fertile moist well-drained soil
    Humus-rich
  • Toxic - Category C
    Harmful if eaten
    Pets, i.e. cats, dogs, rabbits, rodents, notably dogs and cats
    May cause skin allergy
    People
  • Wildlife
    Rabbit Resistant
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Hydrangeas - Care Guide
Hydrangeas - Video Spotlights

Useful extras...

Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00

Fertilisers & Feeds - Empathy
Afterplant - Grow Your Own
AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
Only £8.00

Fertilisers & Feeds - Empathy
Afterplant - Tomatoes
AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
Only £8.00

Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
3 options from £3.00

Fertilisers & Feeds - Empathy
Rootgrow Ericoid mycorrhizal fungi
This specially adapted Rootgrow™ mycorrhizal fungi will boost the growth of acid-loving plants like rhododendrons, azaleas, heathers and blueberries. It contains ericoid and arbuscular mycorrhizal fungi, which are found in poor acidic soils where ericaceous plants naturally grow.
Only £7.50

Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants. Perfect used in conjunction with Rootgrow™.
Only £7.50

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