Seasonal Maintenance Guide
- Wait until soil is workable before cutting back perennials (late April-May)
- Remove winter mulch gradually as temperatures warm
- Apply compost and organic fertilizer after last frost
- Plant summer perennials after Memorial Day in most areas
- Divide and transplant overgrown perennials in late spring
- Mulch beds to conserve moisture as weather warms
- Deadhead spent blooms regularly to maximize short season
- Water deeply 2-3 times weekly during dry periods
- Monitor for hail damage and trim damaged growth
- Stake tall perennials like delphiniums before storms
- Cut back early bloomers for potential second flush
- Apply afternoon shade cloth in lower elevations if needed
- Plant spring bulbs before ground freezes (September-early October)
- Divide perennials in early fall for spring establishment
- Water deeply before ground freezes to prevent winter desiccation
- Leave seed heads and stems for winter interest and bird food
- Apply winter mulch after first hard freeze
- Protect marginally hardy plants with extra mulch
- Ensure snow cover protects plant crowns or add mulch
- Plan next season and order cold-hardy varieties
- Brush heavy snow off evergreen structures
- Avoid walking on frozen garden beds
- Clean and sharpen tools during dormant period
- Monitor for deer and rabbit damage, add protection if needed