Seasonal Gardening: Early April

Crocus in bloom. Photo by Sarah Brower, March 21, 2021. 

It’s spring! A very warm and dry spring. It’s finally spring, and while our recent weather feels more like late spring or even early summer, seasonal indicators show we’re just coming out of winter. Red and silver maple trees have been blooming for a couple weeks now, and catkins (flowers) have emerged from quaking aspen, big tooth aspen, and some willows. Honey bees have been active on crocus blooms. Some daffodils are already blooming and other spring bulbs like hyacinth and puschkinia are shooting up and about ready to bloom. Many edible backyard weeds are up and some are flowering already. Look for purple dead nettle, ground ivy, yellow rocket, black medic, curly dock, and broad leaved dock. Hairy bittercress is already going to seed! Key seasonal indicators, garden tasks, and seed starting suggestions are listed here with more information at the link below. 

Seasonal Indicators

  • Trees are blooming: red and silver maples, hazelnuts, willow family trees
  • Spring bulbs coming up or flowering: crocus, daffodil, tulip, hyacinth, puschkinia, Star of Bethlehem 
  • Weeds - purple dead nettle, ground ivy, yellow rocket, hairy bittercress, black medic, docks, dandelion 
  • Wood frogs and spring peepers
  • Birds are staking out territories and nesting. House wren is back, chimney swifts and swallows; water/shore birds: greater and lesser yellow legs, green herons, black-crowned night herons; first warblers: yellow-rumped, palm, yellow, common yellowthroat

Garden Tasks 

  • Start hardening off seed starts
  • Spread compost
  • Mulch
  • Set up trellises and structures for climbing plants
  • Early weeding

Seeds to Start Indoors
  • Tomatoes
  • Basil
  • Brassicas: kale, collards, cabbage, etc.
  • Calendula, marigolds, Mexican mint marigold
  • Other larger seeded flowers like borage, nasturtiums, zinnias, love-in-a-mist, nicotiana, coreopsis, daisies 

Seeds/Propagules to Direct Sow

  • Potatoes
  • Peas
  • Brassicas
  • Beets
  • Carrots
  • Onion sets
  • Spinach
  • Cilantro
  • Arugula
  • Radish
Seasonal Gardening: Early April
Seasonal Indicators
Garden Tasks
Seeds to Start