J
Ornamentals
Hollyhock
Alcea rosea
A very tall biennial that lines village walls in France, as on the Île de Ré; self-seeds freely.
- Light
- Full sun (6 h or more)
- Height
- 1.5–2.5 m
- Watering
- Low: every 7–15 days, drought-tolerant
- Soil
- undemanding
- Edible?
- No: ornamental
- How to plant
- Sow direct undefined cm deep; leave 50 cm between plants.
- Care
- Sow in summer by a sunny wall; it flowers the following year. Rust marks the leaves: remove affected ones.
Calendar by climate
Warm coast
F
M
A
M
J
J
A
S
O
N
D
Mild Mediterranean
J
F
M
A
M
J
J
A
S
O
N
D
Southern interior
J
F
M
A
M
J
J
A
S
O
N
D
Continental interior
J
F
M
A
M
J
J
A
S
O
N
D
Cold interior and uplands
J
F
M
A
M
J
J
A
S
O
N
D
Atlantic
J
F
M
A
M
J
J
A
S
O
N
D
Canary Islands (subtropical)
J
F
M
A
M
J
J
A
S
O
N
D
SowPlantHarvestPruneFeedTreat
Dates are for growing outdoors, based on the local climate. In a greenhouse or tunnel everything comes earlier.
Feeding and doses
Mild Mediterranean
Not needed.
Pest prevention and doses
Mild Mediterranean
- RustWettable sulphur · May2–3 g / L
Approximate doses: always follow the product label. Spray in the evening, never in full sun or on flowers visited by bees. No sulphur above 30 °C.
How easy to grow by climate
- Warm coastEasy
- Mild MediterraneanEasy
- Southern interiorEasy
- Continental interiorEasy
- Cold interior and uplandsEasy
- AtlanticEasy
- Canary Islands (subtropical)Needs regular careNo winter chill
Plants in the same category
- Rose
- Lavender
- Bougainvillea
- Canary Island date palm
- Mexican fan palm
- Dwarf fan palm
- Jacaranda
- Aloe vera
- Golden barrel cactus
- Foxtail agave
- Oleander
- Rosemary
- Chinese hibiscus
- Japanese pittosporum
- Cape leadwort
- Geranium
- Petunia
- Gazania
- Agapanthus
- Carnation
- Lawn (tall fescue)
- Lawn (Bermuda grass)
- Bay laurel
- Jasmine
- Mastic tree
- Italian cypress
- Myrtle
- Wisteria
- Gardenia
- Hydrangea
- Silk tree
- Chinaberry
- Peruvian pepper tree
- Tamarisk
- Calla lily
- Bearded iris
- Chrysanthemum
- Marigold
- Honeysuckle
- Camellia
- Cork oak
- Azalea
- Bird of paradise
- Box
- Southern magnolia
- Dragon tree
- New Zealand Christmas tree
- Marguerite daisy
- Star jasmine
- Crape myrtle
- Red-tip photinia
- Cyclamen
- Holm oak
- Cherry laurel
- Laurustinus
- Rhododendron
- Chinese windmill palm
- Lantana
- Ivy
- Begonia
- Busy Lizzie (impatiens)
- Pansy
- Primrose
- Linden (lime tree)
- Lilac
- Peony
- Dahlia
- Tulip
- Daffodil
- Butterfly bush
- Forsythia
- Clematis
- Hornbeam
- Yew
- Thuja (arborvitae)
- Japanese maple
- Silver wattle (mimosa)
