Moonrock® Hardy Hydrangea | Panicle Hydrangea

Moonrock® Hardy Hydrangea | Hydrangea paniculata 'Kolmakilima' USPP29853, CPBR5853 BEST VALUE: Premium 2 Gallon — Landscape Ready Our 2 Gallon ships as a fully established, field-grown specimen — the same professional-grade plant landscapers choose for immediate impact. Stronger root system, faster establishment, and heavier blooms in year one. This is the size that performs. FILL MY BOX & SAVE 1 Moonrock® = Original price Buy 2 Moonrock® = Save 15% Buy 4 Moonrock® = Save 25% Buy 6 Moonrock® = Save 30% Savings apply automatically at checkout. Why Moonrock® is Trending in 2026 Gardens Jaw-dropping color journey: blooms open intense lime-green then shift through cream to deep red — three seasons of drama in one plant Award-winning genetics from Canada's premier nursery — proven performance, not a garden experiment Thrives in Zones 3-8, handling brutal northern winters and southern heat with equal ease Full sun performer — unlike most hydrangeas, Moonrock® loves direct sun and rewards it with heavier blooms Pollinator magnet — bees and butterflies flock to those massive panicle clusters all season What This Plant Does For You Moonrock® delivers something most hydrangeas simply cannot: a color show that evolves all season long. Those enormous panicle clusters open in a vivid lime-green that commands attention, then transition through creamy white into rich shades of red as the season progresses. You don't get one moment of beauty — you get a continuous, ever-changing display from summer through fall that keeps your garden looking dynamic and intentional. This is the hydrangea that thrives where others struggle. Paniculata types are the toughest hydrangeas available — cold-hardy to Zone 3, sun-tolerant, and drought-resilient once established. Moonrock® takes all those built-in advantages and adds award-winning flower performance on top. Plant it, establish it, and let it reward you for decades. Add to Cart — Secure Your 2 Gallon Today What This Plant Does For Your Garden Instant structural presence: At 4-6 feet tall and wide, Moonrock® arrives as a substantial plant that immediately anchors your landscape. No waiting years for impact — the 2 Gallon size establishes quickly and delivers its full color show in the first season. Three-season color without effort: Lime-green in summer, creamy white at peak, deep red tones in fall — Moonrock® carries your garden's color story from June through October without any intervention from you. While other shrubs go quiet after their single bloom flush, Moonrock® keeps evolving. A plant that earns its space: The 4-6 foot size makes Moonrock® a true landscape workhorse — use it as a privacy screen, a hedge, a specimen plant, or a back-of-border anchor. It fills space beautifully and provides structure that smaller plants simply cannot deliver. Cut flower abundance: Those massive panicle clusters are exceptional for fresh arrangements and dry beautifully for long-lasting displays. One established Moonrock® gives you an endless supply of statement blooms for your home all season. Plant Highlights Botanical Name: Hydrangea paniculata 'Kolmakilima' Patent: USPP29853, CPBR5853 Brand: Blooming Easy® Grown by: The Plant Factory Mature Height: 4-6 feet Mature Width: 4-6 feet Growth Rate: Moderate Type: Deciduous flowering shrub Flower Color: Intense lime-green fading through cream to red Bloom Time: Summer through fall Hardiness Zones: 3-8 Sun Exposure: Full sun preferred; tolerates part shade Soil: Tolerant of many soil types; well-drained preferred Water Needs: Occasional; drought tolerant once established Deer Resistant: No Pollinator Friendly: Yes Pet Safe: No — toxic if ingested Awards: Yes Add to Cart — Fill My Box & Save Up to 30% Premium Features & Solutions — Why the 2 Gallon Wins 2 Gallon — Best Value, Landscape Ready ($64.99) The professional's choice. Fully established root system, larger canopy, and the vigor to deliver heavy blooms in year one. Establishes faster, fills in quicker, and reaches mature size ahead of smaller sizes. Paniculata hydrangeas are long-lived shrubs — starting with a strong 2 Gallon plant is the smartest investment you can make. The Paniculata Advantage: Unlike macrophylla hydrangeas that require careful pruning and coddling, Moonrock® blooms on new wood every year. Prune it hard in late winter, and it comes back stronger with more blooms. No anxiety about cutting off next year's buds — this plant rewards bold pruning with bold performance. Sun Tolerance — A Rare Hydrangea Trait: Most hydrangeas demand shade. Moonrock® thrives in full sun, opening up planting locations that would stress other hydrangea varieties. South-facing beds, open lawns, sunny borders — Moonrock® handles them all and blooms more heavily for it. Smart Growing Guide For Beginner Gardeners — Simple Steps to Success: Step 1 — Choose Your Spot: Full sun is ideal — 6+ hours of direct sun produces the heaviest blooms. Moonrock® tolerates part shade but performs best in sun. Make sure there's room for a 4-6 foot wide plant at maturity. Step 2 — Prepare the Hole: Dig twice as wide as the pot, same depth. Mix removed soil with compost 50/50. Good drainage is important — avoid low spots where water pools. Step 3 — Plant at the Right Level: Top of root ball should be level with the ground. Fill, firm gently, and water thoroughly at planting. Step 4 — Mulch: Apply 2-3 inches of mulch around the base, keeping it away from the stem. Retains moisture and moderates soil temperature through winter. Step 5 — Water the First Season: Water deeply 2-3 times per week the first season until established. Once established, Moonrock® is quite drought tolerant and needs only occasional deep watering. Step 6 — Feed in Spring: Apply slow-release fertilizer as new growth emerges. Our SR-18-5-10 formula is ideal. One spring feeding is all most gardeners need. Step 7 — Prune in Late Winter: Cut stems back by one-third to one-half in late winter or early spring before new growth emerges. This encourages strong new growth and maximizes bloom count. Because Moonrock® blooms on new wood, you cannot make a pruning mistake that costs you flowers. For Advanced Gardeners — Optimization Techniques: Hard Pruning for Maximum Blooms: Cut Moonrock® back to 12-18 inches in late winter for the largest individual flower heads. Less aggressive pruning produces more but smaller panicles. Adjust based on your aesthetic preference — both approaches work beautifully. Precision Fertilization: Apply SR-18-5-10 slow-release at bud break. Supplement with liquid 20-20-20 every 3 weeks through June. Switch to low-nitrogen 5-10-10 in July to promote bud set and color development. Avoid high nitrogen after August. Maximizing Color Transition: The lime-to-red color shift intensifies with cooler fall temperatures and increased sun exposure. Plants in full sun with good air circulation develop the deepest red tones. Avoid overhead irrigation in fall to prevent fungal issues as temperatures drop. Drying Blooms for Winter Arrangements: Harvest panicles when they have just begun their color transition (cream to blush stage) for the best dried results. Cut in the morning, strip leaves, and hang upside down in a cool dry location for 2-3 weeks. The dried blooms hold color for months. Pro Tips for Maximum Impact Mass Planting: Three Moonrock® plants spaced 4-5 feet apart create a stunning hedge or privacy screen that delivers a continuous color show from summer through fall. Fill My Box Strategy: Order 4+ plants and save 25% — Moonrock® planted in groups creates exponentially more visual impact than a single specimen. Companion Planting: Pair with ornamental grasses, purple coneflower, or black-eyed Susan for a naturalistic planting that complements the lime-to-red color journey. Cut Flower Harvest: Cut panicles in the morning when fully open. Place immediately in water. For drying, harvest at the cream-to-blush transition stage for best color retention. Winter Interest: Leave dried panicles on the plant through winter — the tan seed heads provide beautiful structure and winter interest before spring pruning. Frequently Asked Questions Q: I'm new to hydrangeas. Is Moonrock® a good starter plant? A: Moonrock® is actually one of the easiest hydrangeas to grow. Paniculata types like Moonrock® are more forgiving than other hydrangea species — they tolerate more sun, more cold, and more pruning variation. If you've struggled with other hydrangeas, this is the one that will restore your confidence. Q: Why is the 2 Gallon the best value? A: The 2 Gallon arrives as a fully established plant with a mature root system and larger canopy. It establishes faster, blooms more heavily in year one, and reaches mature size ahead of smaller sizes. For a long-lived shrub like Moonrock®, starting strong pays dividends for decades. Q: How does the Fill My Box savings work? A: Buy 2 Moonrock® plants and save 15%, 4 plants save 25%, and 6 or more save 30%. Savings apply automatically at checkout — no code needed. It's the smartest way to build a hedge or mass planting while maximizing your budget. Q: Does Moonrock® really change color, or is that just marketing? A: The color change is real and dramatic. Blooms open a vivid lime-green in early summer, transition through creamy white at peak bloom, then develop rich red and burgundy tones as fall approaches. The intensity of the red deepens with cooler temperatures and more sun exposure. Q: How is Moonrock® different from Limelight or other panicle hydrangeas? A: Moonrock® starts with a more intense lime-green than Limelight and develops deeper red tones in fall. The bloom clusters are exceptionally large relative to plant size, and the award-winning genetics from Canada's premier nursery represent a significant improvement in overall plant vigor and flower performance. Q: Can I grow Moonrock® in Zone 3? A: Yes — Moonrock® is cold-hardy to Zone 3, making it one of the most cold-tolerant hydrangeas available. Because it blooms on new wood each year, even severe winters that kill stems to the ground won't prevent blooming — new growth emerges in spring and blooms reliably every season. Q: When should I prune Moonrock®? A: Prune in late winter or early spring before new growth emerges. Cut stems back by one-third to one-half for a balance of bloom size and quantity. Because Moonrock® blooms on new wood, you cannot make a pruning mistake that costs you flowers — it's very forgiving. Q: How much sun does Moonrock® need? A: Full sun (6+ hours) produces the heaviest blooms and the most dramatic color transition. Moonrock® tolerates part shade but performs best in sun — this is one of the key advantages of paniculata types over other hydrangea species that demand shade. Q: Is Moonrock® deer resistant? A: No — like most hydrangeas, Moonrock® can be browsed by deer. In high-deer-pressure areas, consider protective fencing during the first season while the plant establishes, or apply deer repellent regularly during the growing season. Q: What's the best fertilizer for Moonrock®? A: Apply SR-18-5-10 slow-release fertilizer at bud break in early spring. Supplement with liquid 20-20-20 every 3 weeks through June. Switch to 5-10-10 in July to promote bud set and fall color development. Avoid all fertilization after August 15 to allow proper hardening before winter. Q: Why Are My Hydrangea Leaves Falling Off? A: Leaf drop is usually caused by stress or seasonal changes. Too much water can lead to root rot, causing leaves to drop — make sure soil drains well and avoid standing water. Not enough water can also cause leaf drop as the plant tries to conserve moisture, so keep soil consistently moist, especially in warm weather. In fall or winter, hydrangeas naturally lose leaves as they enter dormancy, which is completely normal and seasonal. Check soil moisture and the time of year to determine the cause. TAKE ACTION NOW Moonrock® is one of our fastest-moving panicle hydrangeas — stock moves quickly each season. Order today to secure your 2 Gallon plants, and don't forget to fill your box and save up to 30% by adding more plants to your order. This is the lime-to-red color show your garden has been missing. Ordering & Shipping Information Processing Time: Orders are typically processed within 1-3 business days. Orders placed after 4:00 PM Wednesday through Sunday ship the following Monday. Shipping Protection: The Plant Factory uses premium shipping processes to ensure your plants arrive healthy and ready to thrive. We monitor weather conditions and may temporarily hold your order if extreme temperatures (above 95°F or below 34°F) threaten plant health during transit. Seasonal Considerations: Plants are living products that vary by season. We often remove blooms before shipping as they don't travel well. Your purchase is an investment in your garden's future — enjoy watching your Moonrock® grow to its full spectacular potential! Size Expectations: Photos show mature plants to demonstrate quality and potential. Your plant size will vary based on the season of purchase. All plants are professionally grown to Blooming Easy® standards. Note: The images and videos on our site are the best way to show off our products and show how good we are as growers. Depending on the season you buy, you may get a plant that is smaller or bigger than the picture shows. The plant might bloom like it does on our site, but it might not. We cut off the blooms most of the time because they don't ship well. When you buy our plants, think of them as an investment in your future garden, and enjoy the process of seeing it grow to its fullest.