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Native Plants As Habitat For Wildlife - Native Plant Society of ...

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'Toba', also from Morden and with the same parentage, is about 4 m (12 ft) has double,<br />

pale-pink flowers, bright red fruit, and glossy, deeply-lobed leaves, but is less hardy. It is<br />

also resistant to cedar-apple rust.<br />

Crataegus crus-galli (cockspur hawthorn) is a native hawthorn with white flowers and<br />

bright red fruit retained over much <strong>of</strong> the winter. Both the common and botanical names<br />

refer to the similarity <strong>of</strong> the 5 cm (2 in.) thorns to the spurs <strong>of</strong> a rooster! It is up to 5 m<br />

(15 ft) in height with a distinctive and attractive horizontal branching habit. The bright<br />

green glossy leaves show resistance to rust. The foliage has good fail color ranging from<br />

orange to scarlet.<br />

C. crus-galli inermis (thornless cockspur hawthorn) is similar in every way to the species<br />

except for the absence <strong>of</strong> thorns. "Inermis" means, <strong>of</strong> course, unarmed or without thorns!<br />

C. columbiana (Columbian hawthorn) is native to the Cypress Hills <strong>of</strong> Alberta and<br />

Saskatchewan, 4 m (12 ft) in height, with white flowers, dark red fruit and well armed<br />

with stout thorns up to 6 cm (2.5 in.)in length.<br />

C. succulenta (fleshy hawthorn) is also native, and about the same height. It has white<br />

flowers, red sticky fruit, and is highly susceptible to cedar apple rust.<br />

C. chrysocarpa (round-leaved or fireberry hawthorn) is another native species, with dark<br />

green, glossy leaves and red orange berries. Three metres (10 ft) in height, it has white<br />

flowers and thorns.<br />

Culture:<br />

Hawthorns do well in full sun on a variety <strong>of</strong> soils as long as drainage is good. They may<br />

occasionally be infected with pear slug or fireblight. Cedar apple rust, which can<br />

completely disfigure the leaves and even cause defoliation, is the most serious problem.<br />

<strong>Plant</strong>ing resistant species is recommended.<br />

Use:<br />

Because <strong>of</strong> its small size, the hawthorn is an excellent but under-used tree in the small<br />

urban yard. It can be grouped is larger spaces. Not recommended for climbing, its value<br />

lies in its size, flowers and fruit. It provides both cover and food for birds and is a nectar<br />

plant for humming birds. It is also used in shelterbelt plantings.<br />

Propagation:<br />

Seed which has first been stratified for 3 months at 40°C.<br />

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