The plant sold as “Candy Kisses Hydrangea” is not a hydrangea at all — it’s actually Hemizygia, a velvety-leafed annual with clusters of lilac blooms that thrive in full sun and well-draining soil.
If you saw a “Candy Kisses Hydrangea” on QVC or at a nursery and wondered whether it fits your garden, here’s the truth: the name belongs to a different species entirely. That plant won’t grow like a hydrangea, bloom on old wood, or need the same care. Getting the ID right saves you from watering and pruning mistakes that kill the wrong plant — or neglect the real hydrangeas already in your beds.
The “Candy Kisses Hydrangea” Identity Problem
The plant marketed under that name is Hemizygia, sold as Candy Kisses Wild Sage. It grows about 18 inches tall with flower stalks reaching 24 inches, spreads to 18 inches wide, and produces lilac blossoms above velvety gray-green leaves. Retailers including QVC have sold it under the mislabel “Candy Kisses Hydrangea,” but no true hydrangea — not Hydrangea macrophylla, paniculata, or any other species — carries that cultivar name. The real hydrangea family (bigleaf, panicle, smooth, oakleaf) grows 3 to 6 feet tall and blooms on old or new wood depending on the type; Candy Kisses is a shorter annual that blooms on new growth until frost.
Candy Kisses Hemizygia Care: The Right Instructions
Because Candy Kisses is a Hemizygia — a heat-loving annual from the mint family — its care is completely different from a hydrangea’s. Treat it like a warm-season bedding plant, not a shrub.
Sunlight
Full sun to partial shade produces the most compact growth and heaviest bloom. In hotter climates (Zone 8 and above), afternoon shade prevents leaf scorch.
Soil
Well-draining sandy or loamy soil is essential. Unlike hydrangeas, which thrive in moist, organic-rich earth, Hemizygia rots quickly in soggy clay. If your garden has heavy soil, plant it in raised beds or containers.
Watering
Water when the top inch of soil feels dry. This plant tolerates short dry spells and doesn’t need the deep weekly soak a hydrangea demands. Overwatering is the fastest way to kill it.
Temperature And Hardiness
Candy Kisses is winter-hardy only in Zone 9 (areas where the ground never freezes). In every other U.S. zone, it grows as an annual that dies with the first hard frost. Its ideal growing range is 60–75°F — the same window most summer annuals prefer.
Fertilizer
A balanced 10-10-10 fertilizer applied once in early spring is enough. Unlike hydrangeas, which need high-phosphorus formulas for bloom color, Hemizygia doesn’t require heavy feeding.
| Care Factor | Candy Kisses Hemizygia | True Hydrangea (H. macrophylla) |
|---|---|---|
| Plant type | Perennial in Zone 9, annual elsewhere | Perennial shrub |
| Mature height | 18–24 inches | 3–6 feet |
| Sunlight | Full sun to part shade | Morning sun, afternoon shade |
| Soil | Sandy, well-draining | Moist, rich, organic |
| Water | When top inch dries | 1–2 inches per week |
| Cold hardiness | Zone 9 only | Zones 4–9 (varies by type) |
| Bloom wood | New growth | Old wood (most types) |
| Fertilizer | Balanced 10-10-10, spring only | 5-10-10 or 10-20-10; spring + summer |
Real Hydrangea Care (If You Have One)
If you bought a plant labeled “Candy Kisses Hydrangea” but the tag shows broad, glossy leaves and a woody stem, you may actually have a true hydrangea that was mislabeled at the grower. Here’s how to care for the real thing — specifically bigleaf hydrangea (Hydrangea macrophylla), the most common garden type.
How To Plant A Hydrangea
Dig a hole two times the diameter of the root ball, with the top of the root ball level with the ground. Break up the soil inside the hole before placing the plant. Backfill and slope the soil slightly away from the stem to prevent water pooling. Add 3–4 inches of mulch, pulled back from the base to avoid rot. Plant in fall or early spring, when the soil is warm but the heat hasn’t arrived yet. Lowe’s complete hydrangea planting guide covers the full process with step-by-step photos.
Pruning: The Timing That Matters
Most bigleaf hydrangeas bloom on old wood — the buds for next year’s flowers form on stems that grew the previous summer. Prune these types before August 1, while the buds are still active but the plant isn’t setting bloom for the following season. If you prune after August, you’ll cut off all next year’s flowers. Reblooming varieties (like Endless Summer) are more forgiving — they can be cut to the ground in April or May if needed.
Water And Fertilizer
Hydrangeas need 1 inch of water per week in normal weather and 2 inches in hot, dry spells. A soaker hose or drip line at the base is better than overhead watering, which can cause leaf spot. Apply a high-phosphorus fertilizer (5-10-10 or 10-20-10) in late spring and again in mid-summer. Stop fertilizing after August 15 — late feeding produces tender growth that winter will kill.
How To Turn Flowers Pink Or Blue
Bigleaf hydrangeas are famous for changing flower color based on soil pH. Acidic soil (pH below 6.0) produces blue blooms; alkaline soil (pH above 6.5) turns them pink. To shift toward pink, add garden lime according to a soil test. For blue, apply aluminum sulfate or sulfur to lower the pH. The color change takes time — don’t expect results in a single season. Per the UConn Home Garden Hydrangea Fact Sheet, consistent soil management across multiple growing seasons produces the most dramatic change.
| Goal Color | Soil pH | What To Add |
|---|---|---|
| Blue | Below 6.0 | Aluminum sulfate or sulfur |
| Pink | Above 6.5 | Garden lime |
| Purple | Around 6.0–6.5 | Naturally occurs with moderate pH |
Winter Protection For True Hydrangeas
In zones 5 and colder, hydrangeas that bloom on old wood need winter protection to keep their flower buds alive. After the leaves drop, surround the plant with a cylinder of wire mesh or chicken wire, then fill the inside with dry leaves or straw. Remove the wrap in early spring before new growth starts. The green stems that emerge will carry this year’s flowers — if the whole stem died back over winter, that branch won’t bloom.
Three Common Mistakes And How To Avoid Them
Pruning after August is the most common reason hydrangeas don’t bloom the next year. Set a calendar reminder for late July if you own old-wood varieties. Overwatering a Candy Kisses Hemizygia is the fastest way to kill it — the velvety leaves stay damp too long, inviting rot. And assuming a plant labeled “Candy Kisses Hydrangea” is a hydrangea leads to the wrong soil, wrong pruning schedule, and a plant that struggles. Verify the species tag before deciding where to plant it.
Final Identification Checklist
Before you water, prune, or fertilize a plant with a “Candy Kisses” tag, check these three details. If the leaves are velvety and the tag lists Hemizygia, treat it as an annual in full sun. If the leaves are broad and glossy and the stem is woody, it’s a true hydrangea — follow shrub care, plant in rich soil, and never prune after August. The name alone isn’t enough to tell you which plant you own, but getting it right means the difference between a full bloom season and a dead plant by June.
References & Sources
- Lowe’s. “How to Take Care of Hydrangeas – Need to Know.” Covers complete planting steps, pH color control, and pruning timing for bigleaf hydrangeas.
- UConn Home Garden. “Hydrangea Fact Sheet.” Official university guide covering fertilizer, pruning, winter protection, and common mistakes.
- NC State Extension Plant Toolbox. “Hydrangea macrophylla.” Detailed species profile including height, sun requirements, and old-wood bloom behavior.
- Piscopo Gardens (Facebook). “Candy Kisses Hemizygia” post. Confirms the plant is Hemizygia, not a hydrangea.
- All Seasons Nursery – Buy All Seasons. “Candy Kisses Wild Sage” product page. Specs for height, spread, sun, and hardiness zone of true Candy Kisses Hemizygia.
- Flowerbx. “How to Care for Cut Hydrangeas.” Step-by-step cut-flower care including stem angle, water temperature, and vase depth.