Butterfly Bush vs Colorado Blue Spruce

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

Butterfly Bush

Buddleja davidii

Scrophulariaceae · shrubs

Deer ResistantDrought TolerantLow Maintenance

Colorado Blue Spruce

Picea pungens

Pinaceae · trees

Deer ResistantDrought TolerantLow Maintenance

Hardiness Zone Range

Butterfly Bush (Zones 5-9)

Colorado Blue Spruce (Zones 2-7)

Overlap: Both grow in zones 5–7

Detailed Comparison

Feature	Butterfly Bush	Colorado Blue Spruce
Scientific Name	Buddleja davidii	Picea pungens
Family	Scrophulariaceae	Pinaceae
Category	shrubs	trees
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Well-drained	Well-drained
Height	10'	60'
Spread	8'	20'
Bloom Season	Summer-Fall	Spring
Bloom Color	Purple, Pink, White	Green
Growth Rate	Fast	Slow
Native Region	China	Rocky Mountains
Maintenance	Low	Low

Special Traits

Butterfly Bush

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Colorado Blue Spruce

No — EdibleYes — Deer ResistantYes — Drought Tolerant

Care Tips

Butterfly Bush

✓Cut back to 12-18 inches in early spring — blooms on new wood.
✓Deadhead for continuous flowering.
✓Can be invasive — choose sterile cultivars.
✓Full sun essential.

Colorado Blue Spruce

✓Needs full sun for best blue color.
✓Maintain lower branches for best appearance.
✓Watch for cytospora canker and spider mites.
✓Mulch well.

Which Plant Is Right for Your Garden?

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

Choose Colorado Blue Spruce if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 2–7.

Plant them together? Both overlap in zones 5–7. They share similar sun requirements (full sun), making them potential garden companions.

View Butterfly BushProfile →View Colorado Blue SpruceProfile →

Frequently Asked Questions

Can Butterfly Bush and Colorado Blue Spruce grow in the same hardiness zone?

Butterfly Bush grows in USDA zones 5-9, while Colorado Blue Spruce grows in zones 2-7. Both plants can grow together in zones 5 through 7.

Do Butterfly Bush and Colorado Blue Spruce have the same sun and water needs?

Butterfly Bush needs full sun and medium water, while Colorado Blue Spruce needs full sun and medium water. They share similar growing requirements and can be planted in the same bed.

Which grows taller, Butterfly Bush or Colorado Blue Spruce?

Colorado Blue Spruce grows taller at 60' compared to Butterfly Bush at 10'. Colorado Blue Spruce spreads 20' while Butterfly Bush spreads 8'.

Are Butterfly Bush and Colorado Blue Spruce deer resistant?

Yes, both Butterfly Bush and Colorado Blue Spruce are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Butterfly Bush or Colorado Blue Spruce?

Both Butterfly Bush and Colorado Blue Spruce have low maintenance requirements. They need a similar level of care including regular attention to watering, pruning, and soil health.

Explore More Data Tools

For adjacent public-data tools, methodology notes, and network updates, visit DataPeek Facts.

Detailed Comparison

Feature	Butterfly Bush	Colorado Blue Spruce
Scientific Name	Buddleja davidii	Picea pungens
Family	Scrophulariaceae	Pinaceae
Category	shrubs	trees
Sun	☀️ Full Sun	☀️ Full Sun
Water	💧💧 Medium	💧💧 Medium
Soil	Well-drained	Well-drained
Height	10'	60'
Spread	8'	20'
Bloom Season	Summer-Fall	Spring
Bloom Color	Purple, Pink, White	Green
Growth Rate	Fast	Slow
Native Region	China	Rocky Mountains
Maintenance	Low	Low

Care Tips

Butterfly Bush

✓Cut back to 12-18 inches in early spring — blooms on new wood.
✓Deadhead for continuous flowering.
✓Can be invasive — choose sterile cultivars.
✓Full sun essential.

Colorado Blue Spruce

✓Needs full sun for best blue color.
✓Maintain lower branches for best appearance.
✓Watch for cytospora canker and spider mites.
✓Mulch well.

Which Plant Is Right for Your Garden?

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

Choose Colorado Blue Spruce if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 2–7.

Plant them together? Both overlap in zones 5–7. They share similar sun requirements (full sun), making them potential garden companions.

Frequently Asked Questions

Can Butterfly Bush and Colorado Blue Spruce grow in the same hardiness zone?

Butterfly Bush grows in USDA zones 5-9, while Colorado Blue Spruce grows in zones 2-7. Both plants can grow together in zones 5 through 7.

Do Butterfly Bush and Colorado Blue Spruce have the same sun and water needs?

Butterfly Bush needs full sun and medium water, while Colorado Blue Spruce needs full sun and medium water. They share similar growing requirements and can be planted in the same bed.

Which grows taller, Butterfly Bush or Colorado Blue Spruce?

Colorado Blue Spruce grows taller at 60' compared to Butterfly Bush at 10'. Colorado Blue Spruce spreads 20' while Butterfly Bush spreads 8'.

Are Butterfly Bush and Colorado Blue Spruce deer resistant?

Yes, both Butterfly Bush and Colorado Blue Spruce are considered deer resistant, making them excellent choices for gardens in areas with deer pressure.

Which is easier to maintain, Butterfly Bush or Colorado Blue Spruce?

Both Butterfly Bush and Colorado Blue Spruce have low maintenance requirements. They need a similar level of care including regular attention to watering, pruning, and soil health.