Actual size and flowering may vary slightly based on season.
White Iceberg Rose
White Iceberg Rose is a floribunda that covers itself in clusters of clean white flowers with a light honey scent. In the Valley it flowers most from about March to June and again from October into winter, then rests through the summer heat. It stays a tidy 3 to 4 feet tall and wide, so it fits an entry bed, a low hedge or a large patio pot. Plant it where it gets morning sun and afternoon shade, in soil mixed with compost, and give it regular deep water.
Best for: rose beds and borders on an east side, a low flowering hedge, large patio pots, and white cut flowers from spring and fall bloom.
Iceberg flowers in clusters from spring into early summer and again from fall into winter, and it stays about 3 to 4 feet tall and wide. That size fits an entry bed or a border along a walk. Plant it on the east side of the house, where it gets morning sun and shade from the hot afternoon.
Plant a row about 3 feet apart, center to center, and the bushes grow together into a low white hedge. It works well along a path, a patio edge or a front yard border. Prune the whole row in January to keep it even.
At 3 to 4 feet, Iceberg suits a large pot on a patio. Potted roses need more water and feeding than roses in the ground, so check the soil often in warm weather. Set the pot where it gets shade on summer afternoons.
Summer heat means fewer and smaller flowers from June to August, and that rest is normal. Keep it away from light-colored south and west walls, where reflected heat is hardest on roses. It needs amended soil and far more water than desert shrubs, and it declines if it is watered like one.
- Low hedge rowAbout 3 ft apart, center to center
- Bed or border3-4 ft apart, center to center
Water every day for the first week after planting. In summer, water deeply every 2 to 3 days. In winter, about once a week or when the soil is dry.
Give it at least six hours of sun, ideally on the east side with afternoon shade. Avoid light-colored south or west walls that throw reflected heat.
Do the main pruning while it rests, mid December through January. A light trim in late summer, once nights fall to about 70°F, sets up fall flowers. Remove spent flowers as they fade.
Feed it through spring and again in fall, and skip feeding from June through August. Keep a thick layer of wood chip mulch over the roots, a few inches back from the canes.
Flowers are best from March to June and October to February. Summer heat shrinks the flowers, so avoid heavy pruning then and keep watering deeply.
Drainage test first. Dig the hole and fill it with water. If water is still sitting in the hole a day later, you likely hit caliche, clay or hard soil, so fix the drainage before planting. If it drains very fast, the soil is sandy. Standing water around roots is a common reason new plants fail.
Weed cloth. Cut it away from the planting hole and where the roots will spread. Remove any plastic sheeting completely, since it keeps water and air out of the soil.
Rock or decomposed granite with no soil underneath. Bring in soil close in texture to your native soil, mix it with the soil below, and build up enough depth for roots before planting.
If you can break through. Use a breaker bar, pick, or jackhammer. Dig through the caliche and break out the solid chunks. Backfill with the soil you dug out, with no compost or manure in the hole. Confirm drainage before planting.
If you cannot break through. Dig narrow holes through the hard layer beside the root ball, not under it, and refill them with the same soil, not gravel. If it still will not drain, plant on a low mound of the same soil.
Root ball. Check the outside edges for any roots circling around. Loosen or cut those so they grow outward. Do not break up the center of the root ball.
Depth. The top of the root ball should sit at or just slightly above the surrounding soil level. Planting too deep can lead to rot and kill the plant.
Drip emitters. At planting, put the emitters on the root ball, on different sides of the plant. After about 2 months, move them to the outer edge of the root ball. Over the first year, add emitters farther out toward the edge of the branches as roots grow. Once a plant is rooted, never water only at the trunk.
When does Iceberg bloom in Phoenix?
It flowers most from about March to June and again from October into winter. Summer heat slows it down, so expect fewer and smaller flowers from June to August, then keep watering and it will pick back up in fall.
Does Iceberg need shade in Phoenix?
It needs at least six hours of sun, but morning sun with afternoon shade is best in summer. Plant it on an east side, and keep it away from light-colored south or west walls that throw reflected heat.
How often should I water a rose here?
Water a new rose every day for the first week, then every other day or so while it roots in. Once rooted, water deeply 3 to 4 times a week in summer and 2 to 3 times a week in spring and fall, and much less in winter.
When and how do I prune Iceberg in Phoenix?
Do the main pruning in January. Cut out dead, twiggy and crossing canes with hand pruners and open up the center, then clear away fallen leaves. Deadhead spent flowers through the season, but skip heavy pruning in summer.
Why does my rose look bad in summer?
Summer heat pushes roses into a slow, half-resting state from June to August, so fewer and smaller flowers are normal. Keep watering deeply, ease off fertilizer and hold off on pruning until the weather cools.
When should I fertilize Iceberg?
Feed after the January pruning and through spring, and feed potted roses more often than roses in the ground. Ease off feeding in the summer heat from June to August.
Does Iceberg get black spot or other diseases?
Iceberg is known for strong disease resistance, and roses have fewer disease problems in the dry low desert than in wetter climates. Water at the base in the morning and clear fallen leaves after pruning to help keep it clean.
How big does Iceberg get?
It grows about 3 to 4 feet tall and 3 to 4 feet wide. Plant it where it has that much room, or prune it back each January to keep it smaller.
How far apart should I plant Iceberg roses?
Plant them about 3 feet apart, center to center, for a low hedge, or 3 to 4 feet apart in a bed. The Spacing tab on this page counts plants for your bed.
What soil do roses need in Phoenix?
Roses need soil that drains well above all. Dig a wide hole and mix the native soil with compost or forest mulch, then keep a few inches of mulch on top, pulled back from the canes.
Can I grow Iceberg in a pot?
Yes, as long as the pot is large. A potted rose needs more water and feeding than one in the ground, and shade on hot summer afternoons.
Is Iceberg fragrant?
Yes, the flowers have a light honey scent. Plant it by a walk or patio where you can enjoy it up close.
When is the best time to plant roses here?
December through February is best, and fall and early spring also work. Plant before May if you can, since summer is the hardest time to start a new rose.
White Iceberg Rose for sale in Arizona, delivered to you
White Iceberg Rose is a compact white floribunda known for heavy clusters of bloom and strong disease resistance. It grows well in the Valley with afternoon shade, amended soil and regular deep water. Below are the questions people ask most, from bloom time and watering to pruning, spacing and summer care.
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When does Iceberg rose bloom in Phoenix?
Roses in the Valley flower best from about March to June and again from October into winter. Summer heat means fewer and smaller flowers from June to August, and the bloom picks back up as nights cool.
Where to plant a rose in the Valley
Roses want at least six hours of sun, best as morning sun with afternoon shade. The east side of a house is ideal. Keep them away from light-colored south and west walls that throw reflected heat.
How often to water roses in Phoenix
Once rooted, water deeply 3 to 4 times a week in summer and 2 to 3 times a week in spring and fall, and much less in winter. Soak the soil 18 to 24 inches deep, in the morning, at the base of the plant.
When to prune roses in Arizona
January is the main pruning month in the low desert. Remove dead, twiggy and crossing canes and open up the center. Deadhead spent flowers through the season and skip heavy pruning in summer.
How far apart to plant Iceberg roses
Plant Iceberg roses about 3 feet apart, center to center, for a low hedge. In a bed with room to walk around each plant, space them 3 to 4 feet apart.
Soil prep for roses in Arizona
Roses need soil that drains well above all. Mix the native soil with compost or forest mulch in a wide planting hole, then keep a few inches of mulch on top, pulled back from the canes.
Best time to plant roses in Arizona
December through February is the best window in the low desert, and fall and early spring work too. Summer is the hardest time to start a new rose, so plant before May if you can.
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