How to Grow Summer™ Pastels
Achillea millefolium
Your complete guide to growing Summer™ Pastels.
📷 Wikipedia: FlowerWhen to Plant Summer™ Pastels
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | May – June | July – September | — |
| Zone 2 | April – May | June – August | — |
| Zone 3 | April – May | June – August | — |
| Zone 4 | March – April | June – July | — |
| Zone 5 | March – April | May – July | — |
| Zone 6 | March – April | May – July | — |
| Zone 7 | February – March | April – June | — |
| Zone 8 | February – March | April – June | — |
| Zone 9 | January – February | March – May | — |
| Zone 10 | January | February – April | — |
| Zone 11 | January | January – March | — |
| Zone 12 | January | January – March | — |
| Zone 13 | January | January – March | — |
Companion Plants for Summer™ Pastels
✓ Good companions
Provides cascading texture and thrives in similar moisture conditions
Silver foliage enhances pastel colors and adds textural contrast
Complements pastel colors and attracts pollinators with similar growing requirements
Repel nematodes and aphids while attracting beneficial insects
Act as trap crops for aphids and add vibrant color contrast
Share similar care requirements and bloom time, creating cohesive color schemes
Attracts beneficial insects like hoverflies and provides ground cover
Attracts butterflies and beneficial insects while providing complementary colors
✗ Keep away from
Produce juglone toxin that inhibits growth of most flowering plants
Releases allelopathic compounds that inhibit growth of nearby flowering plants
Aggressive root system can overwhelm and compete with delicate flowering plants
