How to Fertilize Your Garden Mid-Season

Give your garden a natural boost of nutrients mid-season for better foliage, flower & fruit production.


A photo posted by Seedsheet (@seedsheet) on

Tips for side-dressing your growing garden:

3-4 weeks after planting in a container or backyard garden, it is a good time to apply organic fertilizer.

#AskSeedsheet tip: Insect pests are attracted to malnourished plants, so keep soil nutrients balanced as an organic, preventative measure.

Instead of mixing fertilizer into the soil, use the "side-dressing" method as described below. Re-apply every 1-2 weeks, (depending on the specific product's instructions) because organic fertilizers are water-soluble and will dissipate with watering/rain showers. 

  • Use a granular, slow-release organic fertilizer to side-dress veggies, herbs and flowers. Apply mixture at the base of each plant, working down the rows. This type of fertilizer will start to work once it is watered in, so apply it before forecasted rain showers or watering. Make sure to read the back of the bag to apply the correct amount. Use a small scoop (or your hands) to distribute because too much will burn the seedlings and stunt growth.
  • Adding organic liquid fertilizer is another way to boost your garden. It is absorbed by plants through the foliage and roots. Add a glug to your watering can (exact quantity will be depicted on the container) and apply over your plants in the morning. For larger gardens, a hose attachment (pictured above, left) can be more efficient. Use liquid fertilizer in drier weather for nutrients to be more effectively absorbed.

Tips for amending soil mid-season to plant again for your next round of fresh ingredients:

  • Pull up your old Seedsheet and remove any decaying plant material to compost. 
  • Sprinkle a seed-starting granular fertilizer and rake it into the top 6-8" of soil. Follow the directions on the package to determine quantity to apply per square foot.
  • Alternatively, if using a regular soil-boosting fertilizer, apply it 1-2 weeks before replanting to avoid "burning" your seedlings.
  • Rake the granules evenly throughout the bed for consistent growth.

Replant your newly refreshed garden bed. Here are some short-season options that will be ready to eat in 3-4 weeks: