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Small deciduous weeping tree grafted on a standard
Fabaceae
Exceptionally hardy small weeping tree with fine foliage
Walker weeping peashrub
Caragana arborescens ‘Walker’
Walker weeping peashrub is a small tree grafted on a standard whose steeply drooping branches carry exceptionally fine, almost threadlike, light-green foliage. Yellow pea-shaped flowers appear in spring and may be followed by a few narrow pods. Height depends on graft position; generally allow approximately 1.2 to 2 m high by 0.9 to 2 m wide (4 to 7 ft × 3 to 7 ft). Hardy to Zone 2, it tolerates cold, wind, salt, poor soil, and drought after establishment. Its airy cascading crown makes a distinctive architectural accent. For best results, inspect soil moisture, the graft union, and foliage response regularly.
7 gallons; 125 cm / Standard
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- Quantity
- 7 gallons; 125 cm / Standard
- Exposure
- Full sun to light partial shade
- Hardiness
- Zone 2
Discover the plant
Common nameWalker weeping caragana; Walker weeping peashrub; Siberian peashrub Walker
FamilyFabaceae
GenusCaragana
Speciesarborescens
CultivarWalker
TypeSmall deciduous weeping tree grafted on a standard
Botanical nameCaragana arborescens ‘Walker’
Walker weeping peashrub (Caragana arborescens ‘Walker’) is a small deciduous tree grafted on a standard and recognized for steeply drooping branches and exceptionally fine foliage. Narrow, light-green, almost threadlike leaflets give the crown an airy fernlike texture. Yellow pea-shaped flowers generally appear in May, followed by a few narrow pods that rarely dominate the display. Final height depends mainly on graft position because shoots descend rather than grow strongly upward. Depending on nursery format, site, and training, allow approximately 1.2 to 2 m of height by 0.9 to 2 m of spread (4 to 7 ft × 3 to 7 ft).
Plant ‘Walker’ in full sun or light partial shade. Hardy to Zone 2, it tolerates severe cold, wind, salt, and dry periods once established. It accepts average or poor soil when drainage is dependable, although extremely alkaline conditions and strong weed competition can slow growth. Water deeply during transport, planting, and the first seasons because the root ball must not dry during establishment. Set the root flare at soil level and keep the graft union exposed. Apply 5 to 8 cm (2 to 3 in) of mulch away from the trunk, then promptly remove shoots emerging below the graft. Avoid standing water and repeated cultivation over the root zone.
Use Walker weeping caragana as a small specimen, architectural accent, entrance tree, rock-garden feature, border focal point, or cascading element above a low wall. Leave enough room for branches to descend naturally toward the ground. Light dormant-season pruning is sufficient to remove dead, crossing, or damaged wood and shorten a branch that obstructs a walkway. Do not shear or cut the entire cascade to one uniform length. Watch mainly for spider mites and thrips during hot, dry weather. With a protected graft union, drained soil, and limited root competition, ‘Walker’ develops into a durable living sculpture that combines delicate texture, spring bloom, and exceptional cold hardiness.
Planting guide
From planting to establishment.
Spacing / density
Allow approximately 2 to 3 m (7 to 10 ft) between trunks or between the tree and a structure so drooping branches can reach the ground without tangling. Height depends on graft position, but the crown can spread to approximately 2 m (7 ft). Keep walkways, walls, and neighbouring plants beyond the mature cascade.
Best planting time
In spring after the soil thaws, or in early fall at least six weeks before persistent frost
Propagation
Grafting onto a <em>Caragana arborescens</em> standard, often the cultivar ‘Sutherland’
Soil and care
The right care,at the right time.
Soil pH
Acidic to alkaline, approximately 5.5 to 8.0; avoid extremely calcareous conditions
Minimum temperature
Approximately -45 °C (-49 °F), Zone 2
Care level
Easy
Drought tolerance
Yes
Watering
Water deeply after planting and keep the root ball evenly moist during the first seasons. Hydration is especially important during transport, storage, and transplanting. Check soil beneath mulch and irrigate when the upper centimetres begin to dry. An established tree tolerates drought well, but occasional water during a long hot period discourages spider mites and preserves dense foliage. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Soil type
Average or poor sandy, loamy, or clay soil is acceptable when drainage is dependable. The species tolerates salt, wind, alkalinity, and drought after establishment, but ‘Walker’ has shown reduced growth in extremely alkaline soil or under strong weed competition. Avoid prolonged standing water and maintain a mulched area around the trunk. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Fertilization
In poor soil, a thin spring compost layer and organic mulch are often sufficient. Caragana fixes nitrogen through bacteria associated with its roots, so heavy nitrogen application is unnecessary. When a soil test identifies a need, apply balanced slow-release fertilizer according to the label. Avoid late fertilization that produces tender growth before winter. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Moisture
Low to medium after establishment; dependable drainage required
Seasonal care
In spring, inspect the graft, remove rootstock shoots, and renew mulch without covering the trunk. Yellow flowers generally appear in May. In summer, water young trees during dry periods and watch for spider mites or thrips, especially when foliage becomes pale or stippled. Remove weeds competing with the roots. In fall, stop fertilizing and confirm that ties do not constrict the standard. During dormancy, remove dead, broken, or crossing wood and shorten only shoots obstructing a walkway. In winter, protect the trunk from rodents, shovel impacts, and piles of salt-laden snow without enclosing the crown beneath fabric. For best results, inspect soil moisture, the graft union, and foliage response regularly. This attention preserves the small tree’s natural cascade and lasting vigour. For best results, inspect soil moisture, the graft union, and foliage response regularly. This attention preserves the small tree’s natural cascade and lasting vigour. For best results, inspect soil moisture, the graft union, and foliage response regularly. This attention preserves the small tree’s natural cascade and lasting vigour. For best results, inspect soil moisture, the graft union, and foliage response regularly. This attention preserves the small tree’s natural cascade and lasting vigour. For best results, inspect soil moisture, the graft union, and foliage response regularly. This attention preserves the small tree’s natural cascade and lasting vigour. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Container growing
A garden,within reach.
Recommended pot size
At least 50 to 75 L (13 to 20 US gal) for a young tree
Container culture is possible in a large stable, well-drained, insulated planter. Provide at least 50 to 75 L (13 to 20 US gal) for a young tree and protect the root ball from repeated freezing and thawing. Water regularly because container roots dry faster even though the plant tolerates drought in the ground. Garden planting remains preferable for lasting vigour.
Bloom and dimensions
Its place,in your garden.
Mature height
1.5 to 2 m (5 to 7 feet)
Width / spread
2 m (6.5 ft)
Flower color
Bright yellow
Foliage color
Light green from spring through fall
Foliage type
Deciduous; compound leaves with exceptionally narrow fine leaflets
Growth rate
Slow to moderate
Growth habit
Strongly weeping, drooping, and cascading
Fragrance
No notable ornamental fragrance
Bloom period
Yellow flowers typical of the pea family generally appear in May. Their shape resembles a small pea blossom, and they develop along drooping shoots among the fine foliage. Bloom provides a bright spring accent without hiding the plant’s outline. Avoid heavy pruning immediately before flowers open; remove only dead wood or shoots below the graft. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Fruiting
A few narrow pods may form after flowering, but they generally remain sparse or inconspicuous on ‘Walker’. They progress from green to brown and may split open when mature. Do not present the seeds as garden food; allow pods to dry naturally or remove them if they fall on a walkway. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Garden associations
In goodcompany.
Companion plants
Pair Walker weeping caragana with sedums, creeping thymes, fine grasses, low junipers, spring bulbs, or hardy geraniums suited to drained soil. Choose low plants that do not hide drooping branches and keep the root flare clear. A dark evergreen background emphasizes light-green foliage and yellow flowers. For best results, inspect soil moisture, the graft union, and foliage response regularly. This attention preserves the small tree’s natural cascade and lasting vigour. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Plants to avoid
Avoid standing water, burial of the graft, strong weed competition, trunk injury, and uniform shearing of the entire cascade. Extremely alkaline soil can reduce growth. Watch for spider mites and thrips during hot dry weather and for vigorous shoots below the graft. Correct water, drainage, and competition before applying treatment. For best results, inspect soil moisture, the graft union, and foliage response regularly. This attention preserves the small tree’s natural cascade and lasting vigour. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Frequently asked questions
Your questions,answered.
How large does Walker weeping peashrub become?
Size depends strongly on graft position because ‘Walker’ branches descend rather than grow vigorously upward. Depending on nursery format, site, and training, allow approximately 1.2 to 2 m of height by 0.9 to 2 m of spread (4 to 7 ft × 3 to 7 ft). A specimen grafted at 125 cm will keep its crown near that starting height, while the cascade mainly gains width and length. Leave enough room for shoots to reach the ground naturally without blocking a walkway, rubbing against a wall, or becoming tangled with neighbouring shrubs. For best results, inspect soil moisture, the graft union, and foliage response regularly.
What is the difference between ‘Walker’ and ‘Pendula’?
Both cultivars have weeping branches, but ‘Walker’ is distinguished by much finer foliage. It resulted from a cross between ‘Pendula’, selected for drooping habit, and ‘Lorbergii’, known for narrow leaflets. The result is a cascading crown with a light, almost threadlike texture, while ‘Pendula’ carries broader leaflets and looks denser. Both are commonly grafted on standards, and their total height depends on graft position. Choose mainly by desired texture: ‘Walker’ creates a delicate graphic effect, whereas ‘Pendula’ provides a more traditional, leafy cascade. Labels should retain the exact cultivar name because the two forms are not interchangeable. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Does Walker caragana tolerate drought and salt?
Yes. A well-rooted tree generally tolerates drought, poor soil, wind, and some salinity. This resilience does not replace watering during transport, planting, and the first seasons. Keep the root ball evenly moist without saturating it, then gradually extend intervals as roots explore surrounding soil. Avoid piling heavily salted snow directly against the trunk or graft union. Mulch kept away from the root flare reduces evaporation and weed competition. In a container, water more often because the exposed root ball dries much faster than soil in the ground. Watch fine foliage for early wilting during prolonged heat. For best results, inspect soil moisture, the graft union, and foliage response regularly.
How should a grafted weeping caragana be pruned?
During dormancy, remove dead, broken, diseased, or crossing wood and shorten only shoots that obstruct a walkway or trail undesirably. Preserve the cascading form and avoid cutting every branch to the same length. Inspect the trunk and base several times during the season. Every shoot emerging below the graft belongs to the rootstock and should be removed cleanly at its point of origin before it becomes vigorous. Never cover the graft with soil or mulch. Use clean tools and avoid removing a large proportion of living foliage in one operation. Correct placement greatly reduces future pruning needs. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Why is my Walker caragana foliage turning pale?
Pale or stippled foliage can indicate spider mites or thrips, especially during hot dry weather. Inspect leaflet undersides for fine webbing, tiny insects, or irregular discoloration. Also check root-ball moisture, drainage, weed competition, and pH because extremely alkaline soil can slow growth. Water deeply when soil is dry and reduce dust around the plant. A firm spray of water on foliage can dislodge a light spider-mite population. If damage continues, choose a targeted treatment compatible with beneficial insects and follow its label. Avoid applying fertilizer automatically because it will not correct mites, root stress, or poor drainage. For best results, inspect soil moisture, the graft union, and foliage response regularly.
Wildlife and pets
Life,around your plants.
Supporting wildlife
Yellow flowers provide pollen and nectar for various spring insects. The drooping crown also offers light shelter and temporary perching structure. Avoid broad-spectrum insecticides when damage remains minor, then add nectar-rich perennials nearby to extend floral resources after the caragana’s brief bloom. For best results, inspect soil moisture, the graft union, and foliage response regularly.