Yaku Princess Rhododendron

Rhododendron 'Yaku Princess'

Nature Hills Nursery

Hardy in zones 5-8 and cold tolerant to -15 degrees F, making it one of the most reliable rhododendrons for northern gardens
Apple blossom pink blooms fade to creamy white in mid to late spring, held in ball-shaped trusses that nearly cover the entire shrub
Unique fuzzy indumentum on the leaf undersides provides built-in protection from winter wind and drying cold, reducing maintenance demands
Dense, compact form reaching just 2-3 ft tall and 4-5 ft wide makes it ideal for small spaces, foundation plantings, and containers

$39⁹⁶

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Plant Size

Product variants

Planting & Care

Where to Plant

Sunlight: Yaku Princess performs best with morning sun and afternoon shade, or consistent dappled light throughout the day. In zones 5 and 6, it tolerates more direct sun, but in zones 7 and 8 afternoon shade is important to prevent leaf scorch and stress during summer heat.

Soil: Plant in acidic, organically rich, well-drained soil with a pH between 4.5 and 6.0. Amend with peat moss or pine bark fines at planting to lower pH and improve drainage. Plant high, with the top of the root ball sitting slightly above grade, as rhododendrons are extremely sensitive to wet feet. Avoid sites near walnut trees, whose roots release juglone, which is toxic to rhododendrons.

Watering Requirements

Water deeply two to three times per week during the first growing season to help the fine, shallow root system establish. Rhododendron roots sit close to the surface and dry out faster than deeper-rooted shrubs, so consistent moisture is essential. Once established, water weekly during dry periods and maintain a 2-3 inch layer of organic mulch over the root zone to keep moisture in and soil temperatures stable.

Pruning Tips

Pruning is rarely necessary with Yaku Princess due to its naturally compact, mounding habit. After blooming finishes in late spring or early summer, remove spent flower trusses by snapping them off at the base, taking care not to disturb the new growth buds forming directly below. Avoid pruning after midsummer, as rhododendrons bloom on old wood and set next year's flower buds in late summer and early fall.

Fertilizer Needs

Apply a slow-release, granular fertilizer formulated specifically for acid-loving plants like azaleas and rhododendrons in early spring before new growth begins. One application per year is all this slow grower needs to maintain healthy foliage color and strong bloom production. Avoid high-nitrogen fertilizers and never fertilize after midsummer, as late-season growth won't harden off adequately before winter and becomes vulnerable to cold damage.

Delivery and Shipping

Shipping Rates

Ships in 7-10 business days • Tracking provided • Weather protected

Under $50	$9.99
$50 - $99.99	$14.99
$100 - $149.99	$16.99
$150 - $198.99	$24.99
$199+	FREE

✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee

Understanding Our Container Sizes

At Nature Hills, our plants are sold in industry-standard nursery containers. You will notice we use the word "container" rather than "gallon." Container numbers follow a nursery trade size standard, not liquid volume. The number tells you the plant's size category and general maturity level. A larger container means a more established plant with a stronger root system.

Container Sizes

Quart

Plant age: 6 months to 1 year
Best for: Ground covers, perennials, ornamental grasses
What to expect: Our smallest and most affordable size. Well-suited for planting in multiples across a large area. Allow 1 to 2 seasons for full establishment.

#1 Container

Plant age: 1 to 2 years
Best for: Shrubs, perennials, smaller trees
What to expect: About the size of a large coffee can. A well-developed root system in a manageable size. Good value choice when you have time to let the plant grow into the space over a season or two.

#2 Container

Plant age: 2 to 3 years
Best for: Shrubs and trees where you want faster establishment
What to expect: A noticeable step up from a #1 in both plant size and root development. Good choice when you want visible presence without going to a larger size.

#3 Container

Plant age: 3 to 4 years
Best for: Most plants, most situations — flowering trees, shade trees, evergreen shrubs
What to expect: Our most popular size. Strong, developed root system. Plants in a #3 container make an immediate visual impact from day one. If you want a head start rather than waiting seasons for a plant to fill in, this is typically the right choice.

#5 Container and Larger

Plant age: 4 to 5+ years
Best for: Specimen plants, privacy screens, maximum instant impact
What to expect: Large, mature plants ready to make an immediate statement in your landscape. We also carry #7 and larger sizes for select varieties.

Why "Container" and Not "Gallon"?

Nursery container sizes follow an industry trade standard established for the nursery and horticulture industry. The number is a size designation, not a measurement of liquid volume. Actual soil volume varies by plant type, root mass, and growing medium. Using "container" is the accurate industry term. When you see #1, #2, or #3, think of it as the plant's size tier, not a gallon measurement.

Root Pouch Containers

Some Nature Hills plants arrive in a Root Pouch, a breathable fabric container made from 100% recycled materials. Root Pouches encourage denser root development through air pruning, which discourages root circling and promotes a stronger, more fibrous root ball at the time of planting.

Plants growing in Root Pouch fabric containers, showing the breathable woven fabric construction

There are two types. Knowing which one you have changes how you plant:

Degradable (brown or tan fabric): Plant the entire pouch directly in the ground. The fabric breaks down naturally in the soil over time.
Non-degradable (black or gray fabric): Remove the pouch before planting. Cut the bottom open with scissors, then peel the sides away. The fibrous root ball will hold its shape.

Not sure which type you have? Check the tag on your plant or contact us and we will confirm.

Full Root Pouch planting guide

Choosing the Right Size

Size	Plant Age	Best For
Quart	6 mo to 1 yr	Ground covers, perennials, grasses. Budget-friendly for mass plantings.
#1 Container	1 to 2 yrs	Shrubs, perennials, small trees. Value choice for patient gardeners.
#2 Container	2 to 3 yrs	Shrubs and trees where you want faster establishment.
#3 Container	3 to 4 yrs	Most plants. Immediate visual impact. Our most popular size.
#5 and larger	4+ yrs	Specimen plants, privacy screens, maximum instant impact.

Still not sure which size is right for your project? Our plant specialists are happy to help. Contact us and we will point you in the right direction.

Plant specifications
Plant Characteristics	Cold hardy, Evergreen, Compact/Dwarf, Flowering, Container Friendly, Attracts pollinators
Hardiness Zone	4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Sunlight	Full sun, Partial shade
Height	2-3 ft
Width	4-5 ft
Preferred Soil	Loamy, Peaty, Sandy
Growth Rate	Slow
Growth Habit	Bushy
Blooms In	Spring
Flower Color	Pink
Foliage Color	Green
Pet Safety	Toxic to pets
Suitable Space	Outdoors, Container
Plant Name	Azalea
Botanical Name	Rhododendron 'Yaku Princess'
Species	yakushimanum
Cultivar	Yaku Princess
Class	Ericales, Magnoliopsida
Does Not Ship To	AK, HI, ID, MT, PR

A Spring Showstopper with Year-Round Appeal

Yaku Princess Rhododendron (Rhododendron x 'Yaku Princess') puts on one of the most dramatic spring displays of any compact shrub you can grow. In mid-May, ball-shaped trusses of apple blossom pink buds open into pale, blush-white flowers that pile up so thickly they nearly hide the foliage beneath. This is a yakushimanum hybrid, bred from species native to Yakushima Island, Japan, and it brings that island-bred toughness and refined beauty into North American gardens with ease.

Flowers, Foliage, and That Remarkable Indumentum

The flowers are the obvious draw, but the foliage earns its own attention throughout the year. The dark olive-green leaves are thick, leathery, and elliptical, with a glossy upper surface that holds its deep color well into winter. Flip a leaf over and you'll find the true signature of Yaku Princess: a fuzzy, buff-tan coating called indumentum that covers the underside of every leaf. This natural feature isn't just ornamental. It acts as a windbreak for the leaf surface in winter and provides some protection against sap-sucking insects. It's one of the reasons yak hybrids outperform standard rhododendrons in colder, more exposed gardens.

Compact Size, Big Landscape Impact

At a mature height of just 2-3 feet with a spread of 4-5 feet, Yaku Princess stays low, wide, and tidy without much help from you. That wider-than-tall habit makes it a natural choice for the front of a mixed shrub border, a foundation planting where scale matters, or a woodland edge where it can spread beneath taller trees. It pairs well with other acid-loving companions like mountain laurel, enkianthus, and ferns, and the low profile allows it to layer beautifully without crowding out neighbors.

Container growing is a genuinely practical option here. The shallow root system adapts well to large pots, and the compact form keeps it proportional for years. A minimum 24-inch container with excellent drainage and a mix of peat-based potting soil will keep it thriving on a patio or deck.

Cold Hardy and Low Fuss

Yaku Princess is reliably hardy down to -15 degrees F, making it one of the hardier rhododendrons available for zone 5 gardeners who have been disappointed by less cold-tolerant varieties. It's also notably pest and disease resistant compared to many rhododendrons, which can be finicky. Bees are reliably attracted to the spring bloom, adding pollinator value to its long list of practical merits. This is a shrub that commits to its location and rewards patience. Its slow growth rate means you won't be cutting it back every few years, and once the roots establish, the yearly bloom is something you can count on.

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Frequently Asked Questions

How cold hardy is Yaku Princess Rhododendron, and can it survive -15°F winters?

Yaku Princess Rhododendron is hardy to USDA zones 5-9 and can handle temperatures down to around -10°F to -15°F. Its yakushimanum heritage from Japan gives it exceptional cold tolerance compared to standard rhododendrons. Provide some wind protection in the coldest zones for best results.

What is the mature size of Yaku Princess Rhododendron—height and width?

Yaku Princess Rhododendron reaches 2-3 feet tall and spreads 4-5 feet wide at maturity. This low, wide habit makes it perfect for front borders and foundation plantings where you need impact without height. Shop at Nature Hills for this compact showstopper.

What are the planting zone requirements for Yaku Princess Rhododendron in northern gardens?

Yaku Princess Rhododendron thrives in USDA zones 5-8, handling cold exposure better than standard rhododendrons thanks to its yakushimanum heritage. The thick indumentum coating provides natural winter protection. Plant in partial shade with acidic, well-draining soil for best results.

What soil conditions does Yaku Princess Rhododendron need—acidic, moist, well-drained?

Yaku Princess Rhododendron requires acidic, well-drained soil that stays consistently moist. Like all rhododendrons, it thrives in soil with a pH between 4.5-6.0 and benefits from organic matter like peat or compost. Avoid heavy clay or waterlogged conditions that can cause root rot.

How do I care for Yaku Princess Rhododendron after planting, including pruning?

Yaku Princess requires minimal pruning due to its naturally compact 2-3 foot habit. Water regularly the first year, mulch around the base, and only prune dead or damaged branches after flowering in late spring. Shop at Nature Hills for this low-maintenance yakushimanum hybrid.

Is Yaku Princess Rhododendron disease-resistant and low-maintenance?

Yaku Princess is notably hardy and low-maintenance thanks to its yakushimanum genetics from Japan's Yakushima Island. The fuzzy leaf undersides (indumentum) naturally protect against wind damage and sap-sucking insects, while the compact 2-3 foot height requires minimal pruning. Plant in acidic, well-draining soil for best results.

What happens if leaves drop after shipping Yaku Princess Rhododendron—is that normal?

Some leaf drop after shipping is completely normal for Yaku Princess Rhododendron as it adjusts to transplant stress. The thick, leathery foliage is naturally resilient and will bounce back once established. Keep soil consistently moist but not waterlogged, and new growth should appear within a few weeks.

What is the bloom time and color for Yaku Princess Rhododendron, and how do I deadhead?

Yaku Princess blooms in mid-May with apple blossom pink buds opening to pale blush-white flowers in ball-shaped clusters. The thick flower trusses nearly cover the foliage during peak bloom. Deadhead spent flowers by snapping them off at the base of the cluster, being careful not to damage the new growth buds forming just below.

Yaku Princess Rhododendron

Rhododendron 'Yaku Princess'