Pollination info for White Knock Out Rose (Rosa 'Radwhite'):

• White Knock Out Rose is a self-pollinating plant, meaning it does not require external pollinators to set fruit.
• However, the plant can still benefit from pollinators such as bees and butterflies, which can increase the quantity and quality of the fruit produced.
• White Knock Out Rose produces single flowers with a diameter of 2-3 inches, which are pollinated by insects that are attracted to their scent and color.
• The plant blooms from early spring to fall and can be pollinated throughout its blooming period.
• Since White Knock Out Rose is a hybrid variety, it is sterile and cannot produce viable seeds. The plant can only be propagated through cuttings or grafting.

White Knock Out Rose (Rosa 'Radwhite') - FAQ

1. What is a White Knock Out Rose?

The White Knock Out Rose is a shrub rose variety that is known for its long bloom time, easy maintenance, and disease resistance. It produces clusters of small, pure white flowers with a slight fragrance, and its foliage is a dark green color.

2. How big does a White Knock Out Rose grow?

A fully grown White Knock Out Rose can reach a height of 3-4 feet and a spread of 3-4 feet. It has a compact, bushy growth habit that makes it suitable for use in small gardens, containers, and as a border plant.

3. How do I care for my White Knock Out Rose?

The White Knock Out Rose is an easy-care plant that requires minimal maintenance. It prefers full sun to partial shade and well-drained soil. Water it regularly, especially during hot and dry weather, and fertilize it once a month during the growing season with a balanced fertilizer. Deadhead blooms as they fade to encourage continuous blooming.

4. How often does a White Knock Out Rose bloom?

A White Knock Out Rose typically blooms in cycles throughout the growing season, with the heaviest blooming in spring and early summer. With proper care, it can produce blooms sporadically throughout the rest of the growing season, until the first frost.

5. Is the White Knock Out Rose disease resistant?

Yes, the White Knock Out Rose is resistant to most common rose diseases, including black spot, powdery mildew, and rust. However, it is still important to monitor the plant for any signs of disease and take appropriate action if necessary.

6. Can I use a White Knock Out Rose as a cut flower?

Yes, the White Knock Out Rose can be used as a cut flower. Its small blooms are best used in arrangements with other flowers, as they may get lost among larger blooms.

7. When is the best time to prune a White Knock Out Rose?

The best time to prune a White Knock Out Rose is in late winter or early spring, before new growth appears. Prune back any dead or diseased wood, and cut back the remaining branches to encourage new growth and a bushier shape.

8. Can I grow a White Knock Out Rose in a container?

Yes, the White Knock Out Rose is an excellent choice for container gardening. Make sure the container is large enough to accommodate the plant's root system, and use a well-draining potting mix. Water and fertilize the plant as you would if it were growing in the ground.

9. Where can I buy a White Knock Out Rose?

White Knock Out Roses can be purchased at most garden centers and nurseries, as well as online. Check with your local garden center to see if they carry this variety, or search online for a reputable retailer.

10. What is the difference between a White Knock Out Rose and a regular Knock Out Rose?

The main difference between a White Knock Out Rose and a regular Knock Out Rose is the color of the blooms - one produces pure white blooms, while the other produces pink-red blooms. Otherwise, they have similar growth habits, bloom times, and disease resistance.

Planting & Care for White Knock Out Rose (Rosa 'Radwhite')

Planting

• Choose a sunny spot with well-draining soil.
• Plant in the early spring or fall to avoid extreme temperatures.
• Dig a hole twice as wide and just as deep as the root ball.
• Loosen the soil at the bottom of the hole and mix in some compost.
• Place the rose in the hole and backfill with soil, firming it down gently.
• Water thoroughly.

Care

• Water deeply once a week, more often in extreme heat.
• Fertilize with a granular rose fertilizer in the spring and again in midsummer.
• Prune in late winter or early spring to remove dead or diseased wood, as well as any branches that cross or rub against each other.
• Deadhead regularly to encourage more blooms.
• Watch for common rose pests such as aphids and spider mites, and treat as needed.
• Protect the plant in the winter by covering with a layer of mulch.