Rising Sun Redbud

What is Rising Sun Redbud?

Rising Sun Redbud (Cercis canadensis ‘JN2’) is a patented Proven Winners cultivar of the Eastern redbud — a US native tree. It grows 12–15 feet tall and wide in USDA Zones 5–9, producing magenta-pink spring flowers before leaf-out and foliage that cycles from apricot-orange in spring through chartreuse to green by midsummer.

The Eastern redbud (Cercis canadensis) is native to a wide swath of the US — from New Jersey to Nebraska and south to central Florida. Rising Sun is a compact cultivar selected for vivid multi-season foliage color that distinguishes it from the straight species.

It is one of the first ornamental trees introduced with this type of multi-phase spring foliage display. The spring color (apricot to gold) appears simultaneously with the tree’s flowering period, making it exceptionally ornamental from March through May.

Rising Sun Redbud vs. Forest Pansy Redbud

The two most popular ornamental redbud cultivars in US garden centers are Rising Sun and Forest Pansy. They have distinct characteristics:

Rising Sun is better for small urban yards where a 25-foot tree is too large. Forest Pansy suits larger properties and provides more consistent color through summer. For Forest Pansy information, see our forest pansy redbud guide.

USDA hardiness and climate suitability

Rising Sun Redbud grows in USDA Zones 5–9:

• Zone 5 (Minnesota, Wisconsin, Maine, Wyoming): survives winter lows to -20°F; late spring planting recommended
• Zones 6–7 (Mid-Atlantic, Ohio Valley, Pacific Northwest): ideal performance range; good cold hardiness and summer heat tolerance
• Zone 8 (Pacific Coast, Southeast): grows well but summer heat can cause earlier foliage color fade
• Zone 9 (Deep South, Central California): performs but may struggle in extended summer heat above 95°F; eastern exposure helps

Outside these zones (Zone 4 and colder, Zone 10+), Rising Sun is not well-suited. In Zone 4, winter cold damage to flower buds is likely. In Zone 10+, heat stress prevents proper seasonal cycling.

Planting Rising Sun Redbud

Site selection

Rising Sun Redbud performs best in:

• Full sun to partial shade (6+ hours preferred for best color)
• Well-draining soil (does not tolerate standing water)
• Protection from strong winter winds in Zone 5–6

Position the tree where it receives morning sun and afternoon shade in Zone 8–9 heat — this extends the colorful foliage phase by reducing heat stress on leaves.

Spacing: allow 15 feet from structures and other large plants at maturity. The tree spreads as wide as it grows tall, so account for the canopy spread.

Planting steps

1. Dig a hole 2–3 times as wide as the root ball and the same depth
2. Do not amend backfill soil — plant in native soil to encourage root spread
3. Set the tree so the root flare is at or just above soil level
4. Backfill, firm the soil gently, and create a shallow watering basin around the tree
5. Water deeply (3–5 gallons) at planting
6. Mulch with 3–4 inches of wood chips or bark in a 3-foot radius, keeping mulch 3–4 inches away from the trunk

Best planting time: spring (March–May) or fall (September–October). Spring planting in Zones 5–6 gives the full growing season for root establishment before winter. Fall planting works well in Zones 7–9 where winters are mild.

Watering requirements

Water deeply every 7–10 days during the first two growing seasons. After establishment (typically in year 3), Rising Sun Redbud is moderately drought-tolerant.

First-year watering:

• Water 3–5 gallons per tree at each watering
• Water at the base, not on the trunk
• Check soil moisture at 4-inch depth; water when dry at that depth
• Reduce frequency in fall as the tree goes dormant
• Do not water during dormancy (November–February) unless soil is extremely dry

Established tree watering:

• In drought conditions, provide supplemental water every 2–3 weeks
• Eastern redbuds tolerate moderate drought but perform better with consistent summer moisture
• In hot, dry US climates (Zone 8–9 southwest), established trees benefit from monthly deep watering June–September

Soil requirements

Rising Sun Redbud adapts to most US soil types with one critical exception: it does not tolerate prolonged wet or waterlogged soil.

Eastern redbuds naturally grow at forest edges and disturbed areas — they are not pristine soil specialists. They tolerate a range of pH (5.5–8.0) and modest soil compaction better than many ornamental trees.

Fertilizing

Established redbuds typically do not need supplemental fertilizing. Redbuds are leguminous trees — they fix atmospheric nitrogen through root associations with Bradyrhizobium soil bacteria. This means they contribute nitrogen to the surrounding soil ecosystem rather than depleting it.

For young trees in poor soils: apply a balanced slow-release fertilizer (10-10-10) at 1 lb per inch of trunk diameter in early spring. Water thoroughly after application.

Avoid high-nitrogen fertilizers on established trees — excess nitrogen promotes fast, soft growth that is more susceptible to frost damage and disease.

Pruning Rising Sun Redbud

Prune Rising Sun Redbud immediately after flowering in spring — never in fall or winter. Redbuds bloom on old wood (previous year’s branches). Pruning in fall or winter removes next spring’s flower buds.

Pruning goals:

• Remove dead, damaged, or crossing branches
• Maintain tree structure in the early years (first 3–5 years)
• Raise the canopy gradually if lower branches interfere with walkways

Do not prune heavily. Redbuds are susceptible to canker diseases when pruned in wet conditions. Make clean cuts with sharp, sterilized tools. Seal wounds on cuts larger than 1 inch in diameter with pruning sealant.

Annual hard pruning significantly shortens the life of redbud trees. Prune only what is necessary.

Common problems with Rising Sun Redbud

Verticillium wilt

Verticillium wilt (Verticillium dahliae) causes sudden branch dieback, often on one side of the tree first. Leaves on affected branches wilt and die while still green. A cross-section of affected branches shows discolored wood (olive-green or brown streaking).

No chemical treatment cures verticillium wilt. Remove affected branches well below the point of discoloration. Avoid planting redbuds where tomatoes, potatoes, or other susceptible plants grew recently.

Canker diseases

Canker diseases (Botryosphaeria, Cercospora) enter through wounds and pruning cuts. Infected areas show sunken bark with dieback above.

Prevention: prune only in dry weather; sterilize pruning tools between cuts; avoid mechanical damage to the trunk.

Leaf spots

Cercospora leaf spot creates round brown spots on leaves. Rarely serious on healthy trees. Improve air circulation and avoid overhead watering.

Rising Sun Redbud in the landscape

Rising Sun Redbud works well as:

• A specimen tree in residential lawns (its spring color is a focal point)
• A woodland garden edge tree (reflects its native habitat)
• A pollinator tree — redbud flowers are among the earliest bee forage in spring, providing nectar and pollen when few other flowers are available

For companion plants, combine Rising Sun with early-blooming spring bulbs at its base (daffodils, tulips), shade-tolerant ground covers beneath the canopy, and native perennials that bloom after the tree’s color fades. Creeping thyme works well as a drought-tolerant ground cover beneath mature redbuds — see our creeping thyme care guide.

For the broader flowering tree and shrub category, our flowering bushes guide covers seasonal timing and companion selection for ornamental trees in US residential gardens.