Knockout Rose vs Lavender

Side-by-side plant comparison — which is right for your garden?

Knockout Rose

Rosa 'Radrazz'

Rosaceae · flowers

Drought TolerantLow Maintenance

Lavender

Lavandula angustifolia

Lamiaceae · flowers

Deer ResistantDrought TolerantLow Maintenance

Hardiness Zone Range

Knockout Rose (Zones 5-10)

Lavender (Zones 5-9)

Overlap: Both grow in zones 5–9

Detailed Comparison

Feature	Knockout Rose	Lavender
Scientific Name	Rosa 'Radrazz'	Lavandula angustifolia
Family	Rosaceae	Lamiaceae
Category	flowers	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧 Low
Soil	Well-drained	Well-drained, Sandy
Height	4'	2'
Spread	4'	2'
Bloom Season	Spring-Fall	Summer
Bloom Color	Red, Pink	Purple
Growth Rate	Fast	Medium
Native Region	Hybrid (US)	Mediterranean
Maintenance	Low	Low

Special Traits

Knockout Rose

No — EdibleNo — Deer ResistantYes — Drought Tolerant

Lavender

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Care Tips

Knockout Rose

✓Prune by 1/3 in late winter.
✓No spraying needed — highly disease resistant.
✓Deadheading optional but encourages faster rebloom.
✓Feed in spring.

Lavender

✓Requires excellent drainage — add sand or gravel to heavy soils.
✓Prune after flowering but never into old wood.
✓Avoid overhead watering.

Which Plant Is Right for Your Garden?

Choose Knockout Rose if you want a low-maintenance plant, need drought tolerance. It thrives in full sun with medium water in zones 5–10.

Choose Lavender if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with low water in zones 5–9.

Plant them together? Both overlap in zones 5–9. They share similar sun requirements (full sun), making them potential garden companions.

View Knockout RoseProfile →View LavenderProfile →

Frequently Asked Questions

Can Knockout Rose and Lavender grow in the same hardiness zone?

Knockout Rose grows in USDA zones 5-10, while Lavender grows in zones 5-9. Both plants can grow together in zones 5 through 9.

Do Knockout Rose and Lavender have the same sun and water needs?

Knockout Rose needs full sun and medium water, while Lavender needs full sun and low water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Knockout Rose or Lavender?

Knockout Rose grows taller at 4' compared to Lavender at 2'. Knockout Rose spreads 4' while Lavender spreads 2'.

Are Knockout Rose and Lavender deer resistant?

Lavender is deer resistant, but Knockout Rose is not. If deer are a concern, Lavender is the better choice, or protect Knockout Rose with fencing.

Which is easier to maintain, Knockout Rose or Lavender?

Both Knockout Rose and Lavender have low maintenance requirements. They need a similar level of care including regular attention to watering, pruning, and soil health.

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Detailed Comparison

Feature	Knockout Rose	Lavender
Scientific Name	Rosa 'Radrazz'	Lavandula angustifolia
Family	Rosaceae	Lamiaceae
Category	flowers	flowers
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧 Low
Soil	Well-drained	Well-drained, Sandy
Height	4'	2'
Spread	4'	2'
Bloom Season	Spring-Fall	Summer
Bloom Color	Red, Pink	Purple
Growth Rate	Fast	Medium
Native Region	Hybrid (US)	Mediterranean
Maintenance	Low	Low

Care Tips

Knockout Rose

✓Prune by 1/3 in late winter.
✓No spraying needed — highly disease resistant.
✓Deadheading optional but encourages faster rebloom.
✓Feed in spring.

Lavender

✓Requires excellent drainage — add sand or gravel to heavy soils.
✓Prune after flowering but never into old wood.
✓Avoid overhead watering.

Which Plant Is Right for Your Garden?

Choose Knockout Rose if you want a low-maintenance plant, need drought tolerance. It thrives in full sun with medium water in zones 5–10.

Choose Lavender if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with low water in zones 5–9.

Plant them together? Both overlap in zones 5–9. They share similar sun requirements (full sun), making them potential garden companions.

Frequently Asked Questions

Can Knockout Rose and Lavender grow in the same hardiness zone?

Knockout Rose grows in USDA zones 5-10, while Lavender grows in zones 5-9. Both plants can grow together in zones 5 through 9.

Do Knockout Rose and Lavender have the same sun and water needs?

Knockout Rose needs full sun and medium water, while Lavender needs full sun and low water. Their differing requirements mean you may need separate garden areas for each.

Which grows taller, Knockout Rose or Lavender?

Knockout Rose grows taller at 4' compared to Lavender at 2'. Knockout Rose spreads 4' while Lavender spreads 2'.

Are Knockout Rose and Lavender deer resistant?

Lavender is deer resistant, but Knockout Rose is not. If deer are a concern, Lavender is the better choice, or protect Knockout Rose with fencing.

Which is easier to maintain, Knockout Rose or Lavender?

Both Knockout Rose and Lavender have low maintenance requirements. They need a similar level of care including regular attention to watering, pruning, and soil health.