How to Grow Maximilian
Helianthus maximiliani
Your complete guide to growing Maximilian.
📷 Wikimedia CommonsWhen to Plant Maximilian
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 Maximilian
✓ Good companions
Late season blooms complement Maximilian's flowering period and support migrating butterflies
Similar growing conditions and attracts beneficial pollinators while extending bloom season
Blooms at similar time providing extended nectar sources for pollinators and beneficial insects
Native prairie grass that provides structural support and prevents soil erosion
Complements native prairie ecosystem and shares similar soil and water requirements
Provides wind protection and creates beneficial microhabitat for native wildlife
Attracts beneficial insects and butterflies while thriving in similar prairie conditions
Attracts predatory insects that control harmful pests and improves soil health
✗ Keep away from
Aggressive climbing vine that can smother and shade out tall sunflowers
Produces juglone which is toxic to sunflower family plants and inhibits growth
Highly competitive invasive grass that depletes soil nutrients and moisture
