March Garden Checklist: Flexible Planting, Fertilizing, and Early Season Tasks

Midwest March swings from springlike to frosty—flexibility is your best tool.

Weather-Dependent Priorities

• Favorable turn: Spread fertilizer/compost; dig vegetable beds (prep a fall section for earliest peas)
• Pea deadline: Plant by April 1 for best results
• Gamble early: Risk string beans/endive in river-adjacent zones—early crops beat summer heat bitterness

Dormant & Early Care

• Apply dormant oil sprays for scale (days >40°F)
• Plant gladiolus 5 inches deep for earliest blooms (cold-tolerant)
• Light roll lawns only for worm casts/frost heave—compaction is the enemy
• First fertilizer application: inorganic (organic activates later)

Indoor Starts

• Tomato seeds: 8 weeks before outdoor date
• Feed asparagus early for thicker spears
• Uncover perennials/strawberries gradually; roses partially
• Repot houseplants for spring growth surge

Regional Planting

• Pansies: South of Great Lakes now; North—first week of April
• Start caladiums, tuberous begonias, dahlia tubers (for cuttings)
• Divide hardy chrysanthemums (12-inch spacing) if soil thawed
• Turn compost pile; return unrotted material to seed new heap

Golden Rule

Don't marathon the first nice day. Pace yourself—gardening is a season, not a sprint.