The Garden Website.com for July
Amanda's Garden Consulting Company
Fellow Gardeners..Hello Fellow Gardeners,
It's probably no surprise that I’m a big fan of trees, especially big old ones, so when I saw a Facebook posting of a tree tour at Riverview Arboretum, guided by horticulturist Derek Churchill, I was eager to join. I’ve been to the arboretum several times throughout the years, and I’ve always been impressed. These trees originated from all over the world and date back to the early 1900’s. The 244 acre property surrounds Riverview Hospital. It was in 1911 the arboretum was established by botanist John Davidson. Many of the trees planted back then are still alive thanks to The Riverview Horticultural Society. This non-profit society’s volunteers are the bastions and caregivers of the more than 1,800 tree specimens on the property. BC Housing and the Kwikwetlem First Nation own this prime land that's been threatened by commercial and residential development – perish the thought. Since the Riverview Horticultural Centre Society is non-profit, it can’t survive without the generosity of tree lovers - either by donation or by volunteering. Join in one one of the many scheduled tree tours offered throughout the year. Become a member and be privy to their events and latest updates. The membership fee is only $5.00 for the year. Check out my post and pics from the tree tour on my Facebook Page. Cheers, Amanda |
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Water RestrictionsSTAGE 1: Lawn watering is restricted to one day a week, but water trees, shrubs and flowers is permitted any day from 5 am to 9 am if using a sprinkler, or any time if hand watering or using drip irrigation. Edible plants (veggies, fruits and herbs) are exempt from regulations. Click on Metro Vancouver for details.
Garden ClubsThe BC Fuchsia and Begonia Society promotes fuchsias, begonias, ferns and other shade-loving plants. The society meets at 7pm, 3rd Wednesday each month at St. Timothy's Church Hall, 4550 Kitchener Street. They offer knowledgeable speakers, plant displays, plant sales, refreshments and friendship. Click on Fuchsias & Begonias to learn more.
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Common Name: Catalpas, cigar tree, Catawba, Indian bean tree
Botanical Name: Catalpa speciosa, C. bignonioides Form: upright, symmetrical, broad, rounded crown (canopy) Family: Bignoniaceae Genus: Catalpa Species: speciosa, bignonioides Plant Type: deciduous tree Mature Size: 40–60 ft (12–18m) x 20–40 ft (6–12m) Growth: fast Origin: C. speciosa: midwestern USA, C. bignonioides: southeastern United States Hardiness Zone: C. speciosa - 4 to 8, C. bignonioides – 5 to 9 Foliage: light to yellowish green, heart-shaped, broadly oval to round with pointed tips, up to 12” long and 8” wide, dense hairs on leaf undersides Flowers: large, white snapdragon-like, yellow & purple inside, held in large upright clusters (panicles) up to 10” high Fruit: 12 – 22-inch-long seedpods that resemble brown cigars at maturity that split lengthwise releasing small black viable seeds Trunk: grey-brown, mature trees ridged and fissured Exposure: sun to partial shade Soil: moist, with good drainage Uses: specimen, accent, shade tree Attracts: bees, butterflies Propagation: seeds, cuttings Pruning: late winter Problems: brittle branches, powdery mildew, verticillium wilt, twig blight, catalpa sphinx moth, messy seedpods Comments: Catalpas are no shrinking violets. They turn heads when in bloom and are admired for their splendid form when they are not. Catalpas are medium sized deciduous trees with a broad canopy that bears huge flower clusters amid heart shaped leaves. Catalpas are indigenous to the United States. There are two species, Catalpa speciosa, the northern catalapa and C. bignoides, the southern catalapa. Although they look the same, the northern catalpa hales from the Midwest USA. It’s hardier and bigger than its sibling the southern catalpa that originates from the southeast. Catalpas are known for their bodacious tropical look with their 2-inch ruffled snapdragon-like flowers. The many blossoms sit proudly around a central stem. Flower clusters are huge, up to 10 inches tall. Individual blossoms are white with purple and pink markings inside the flower. Each blossom is beautiful, but they are jaw-droppingly gorgeous when clustered together on upright panicles that pop up all over the tree. Flowering occurs in summer around June and July. The flowers are soon replaced by long green pods that dangle down like narrow slender brown cigars upon maturity, hence their common name the cigar tree. The pods can reach up to 22 inches in length and each contain numerous seeds. Although their seeds are viable, seedlings do not pop up everywhere so they are not considered invasive. Even without it’s magnificent flowers and dangling pods, the catalpa looks pretty darn attractive because of its pleasing rounded canopy. It’s branches stretch like arms embracing the impressive soft green heart-shaped foliage that can grow to 12 inches in length and up to 8 inches wide. In autumn, they turn yellow, providing another season of interest. Even in winter they still manage to garner attention with their beautifully rounded form and perfect ‘bones’. To grow these magnificent trees, provide them with moist soil with good drainage as their indigenous habitat typically occurs along streams and riverbanks. They don’t like dry, arid conditions. When planting, mix in lots of compost and add a 3-inch layer of an organic mulch to reduce soil evaporation. Grow from Seed: To grow them from seeds, collect seed pods when they turn brown. Place the seedpods in the fridge in a paper envelope until spring. Open the pods and bury each seed by ¼ inch in potting soil, water and keep moist. They should germinate in about 3 weeks. |
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