Encephalartos ferox
Holly leafed cycad
Also known as Encephalartos kosiensis
- Height × spread
- 5m × 2m
- Position
- Part shade
- Hardiness
- Frost free greenhouse 1C & above (RHS H2)
- Flowers
- Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This generally grows as a single trunk which often spreads along the ground. It puts out masses of dark green leaves with fairly chunky looking individually leaflets, generally spiny. The cones borne by female plant are large, orangey yellow or orange whilst the male cones are more generally pink or red. The colourful fruits are a particularly feature of this form. It is not frost hardy.
- Flower colour
- Orange, Red
- Foliage colour
- Green
- Fruit colour
- Orange
- Variegated
- No
- Scent
- No
- Shape
- Column
- Height
- 5m
- Spread
- 2m
- Height in 10 years
- 1.5m
- Spread in 10 years
- 1m
- Flowers in
- Summer
- Evergreen
- Evergreen
- Garden style
- Seaside garden, Indoors, Gravel garden, Exotic garden, Conservatory
- Sun or shade
- Likes part shade, likes light shade
- Soil type
- Gravelly soil, Poor soil, Sandy soil
- Soil pH
- Acid (ericaceous)
- Drainage
- Well drained soil, Dry soil, Drought resistant
- Hardiness
- Frost free greenhouse 1C & above (RHS H2)
- Borders & containers
- Borders and containers
- Indoor light
- A light position not direct sun
- Indoor temperature
- 16C minimum temperature
- Use for
- Architectural
- Hazards
- Yes, leaves & stems are prickly/thorny and potentially harmful; Humans: Harmful if eaten
Spring
Spring-Autumn · Indoors
Feed with houseplant food monthly
Give the plant a balanced houseplant feed monthly while in growth.
Where food elements are listed as three numeric values on the label representing in order Nitrogen(N)-Phosphorus(P)-Potassium(K), with percentage values for each, choose one where the values are more or less equal.
Spring-Autumn · Indoors
Water regularly during growth
Water regularly while in growth.
Adopt a regime that means the plants are thoroughly watered every week so that they do not become dessicated. In hot weather watering may need to be more frequent, but less often in cool or moist conditions.
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring - late · Outdoors
Feed with sequestrol
If plants are acid loving and grown in soil with little acidity, or in a container, or are watered with limey tap water an annual feed with sequestrol (iron chelate) is highly beneficial. Follow guidelines on the packet. Will also 'blue-up' hydrangeas.
For hydrangeas that have good blue flowers in acid soil, this product can be used with alkaline soil to turn the flowers blue. This is most effective when the soil is neutral or just slightkly alkaline.
Spring-Autumn · Outdoors
Water during dry periods
For plants in the ground, when there has been little or no rain for a period of 7-10 days and the soil is dry, give it a deep watering and repeat weekly until there is a downpour of rain. Check plants in pots more frequently, especially in hot weather.
Spring - early-mid · Planting
Divide when too large
The plant can be divided if it becomes too large or another plant is required. This may involve physically dividing the clump in two, removing offsets or small bulbs or dividing rhizomes. The new plants can be grown in pots or planted in the ground.
Winter
Winter · Indoors
Water moderately in winter
Water moderately.
Give a small amount of water so that the plant doesn't become flaccid (leaves lose their firmness and may droop or look lifeless), or dessicated, but do not saturate the compost or leave it standing in water.
Winter · Outdoors
Water moderately in winter
Water moderately.
Give a small amount of water so that the plant doesn't become flaccid (leaves lose their firmness and may droop or look lifeless), or dessicated, but do not saturate the compost or leave it standing in water.
Planting & general
Outdoors
Water with rain water
This plant needs rain water or soft water (the minerals in alkaline or "hard" water are harmful). This is especially important for plants in pots.
Compost · Planting
Loam based compost for repotting
Repot using any good quality standard compost.
Alternatively prepare a special compost that is best suited to the plant's needs: mix equal amounts of loam (John Innes no. 2 or 3), fine bark and grit.
Indoor temperature · Planting
16C minimum temperature
This plant requires a minimum temperature of 16 Centigrade.
Compost · Planting
Ericaceous compost
This plant requires acidic (ericaceous) soil. Where the soil is not acidic, or when planting in pots, use an ericaceous compost.
Indoor plant · Planting
Position in indirect light indoors
Give the plant a position that is cool and light, and away from direct sunshine.
Found in
More Encephalartos
Encephalartos horridus
Spined cycad, Ferocious blue cycad
Encephalartos manikensis
Rhodesian cycad
Encephalartos princeps
Kei cycad
Encephalartos trispinosus
Modjadjii cycad, Three spined cycad
Encephalartos altensteinii
Cycad, Prickly cycad, Bread tree, Altenstein's cycad
Encephalartos arenarius
Sandy cycad