Euclea crispa
| Blue guarri (Euclea crispa) | |
|---|---|
| |
| Scientific name | Euclea crispa |
| Genus | Euclea |
| Family | Ebenaceae |
| Order | Ericales |
| Height | 2–6 m |
| Flowering | October–February |
| Fruit | Reddish brown to black, single-seeded |
| Habit | Small tree with a dense crown |
| Sex expression | Male and female flowers on separate trees |
| Exposure | Full sun or partial shade |
| Establishment | Drought- and frost-resistant after establishment |
| Native setting | Bushveld, sheltered grassland, forest margins and rocky places |
Blue guarri (Euclea crispa) is an accepted species in the Ebenaceae family.[1] It is a dense-crowned small tree that reaches about 2–6 m, with separate male and female trees and fruit that ripens from reddish brown to black.[2][3]
Description[edit | edit source]
The species is associated with bushveld, sheltered grassland, forest margins and rocky places. Its compact, densely branched crown suits it to a small-tree role where a naturally full outline is useful. The flowers are borne on separate male and female trees, so a fruiting planting should be assessed for sex rather than assuming that one plant can supply both functions.[3]
Cultivation[edit | edit source]
Soil and water[edit | edit source]
Rocky places are part of the documented native setting. A cultivated plant can therefore be started in a medium that drains freely, while persistently saturated conditions should be avoided; this is a habitat-based cultivation inference rather than a measured irrigation schedule.[3] The available species guidance does not establish a fixed watering interval, so irrigation should be adjusted to drainage, weather and establishment rather than treated as a calendar prescription.
Sun and humidity[edit | edit source]
Full sun or partial shade are both suitable exposures in the available cultivation guidance. A site with some shelter is a sensible choice for young plants because slow-growing seedlings need protection from wind and frost during their first two years. Established plants are described as drought- and frost-resistant, but that description should not be turned into a universal temperature threshold or applied to seedlings.[3]
Seasonal changes[edit | edit source]
In the Southern African seasonal calendar, flowering runs from October into February, spanning spring and summer. Fruit changes to reddish brown or black as it ripens. Keep young plants protected through their first two winters; once established, the species is described as drought- and frost-resistant, while the flowering and ripening period is the season in which a fruiting planting should be watched for both male and female flowering.[3]
Propagation[edit | edit source]
Use fresh seed. Remove the thin fleshy covering and sow promptly in a tray about 10 cm deep filled with rich soil and compost. Cover the seed with about 5 mm of river sand and keep the medium moist but not wet. Transplant at the second-leaf stage, then protect the slow-growing seedlings from wind and frost for their first two years.[3] No germination percentage or germination-time range is established here, so seed quality and emergence should be monitored rather than assigned a fixed schedule.
Flowering, fruiting, and harvest[edit | edit source]
Male and female flowers occur on separate trees. Flowering is reported from October to February, and the single-seeded fruit ripens reddish brown to black. For a fruiting group, retain or establish plants of both sexes; this is a practical consequence of the species' separate-sex condition, not a guarantee of fruit set in every planting.[3]
Fruit and uses[edit | edit source]
The ripe fruit is described as palatable to humans and contains a single seed. Colour at maturity ranges from reddish brown to black. This limited palatability description does not establish food safety, medicinal value or a recommended quantity of fruit to eat.[3]
Photos[edit | edit source]
References[edit | edit source]
Image credits[edit | edit source]
- Euclea crispa, Eugene Marais Park.jpg: Blue guarri in Eugene Marais Park, Pretoria; JMK; CC BY-SA 3.0. Individual file page and rights record.
- Euclea crispa, habitus, Nkwe.jpg: Female Euclea crispa at Nkwe near Pretoria, Gauteng, in Bankenveld habitat; JMK; CC BY-SA 3.0. Individual file page and rights record.
