Fertilizing Nemesia

Nemesia is an easy-care stunner that pushes out lovely tubular blooms during the summer and into the fall. So, why should you fertilize Nemesia? While this annual does well with minimal care, feeding this South African native will support lush growth during the growing season. Fertilized plants will be more apt to grow healthy and push out abundant blooms.


How to Fertilize Nemesia

Nemesia is flexible when it comes to feedings. This annual prefers rich soil with a 5.5 to 5.8 pH. Advanced gardeners may want to test the soil pH and adjust it as needed to support healthy growth. Amending the soil with organic compost or manure will also help Nemesia grow and bloom. Use a balanced slow-release fertilizer in the spring or a water-soluble fertilizer every two weeks during the growing season.


Best Time To Fertilize Nemesia

The best time to fertilize Nemesia depends on the type of product you are using. A granular slow-release fertilizer should be applied once during the spring. Water before applying a slow-release fertilizer to prevent fertilizer burn. Water-soluble fertilizer can be applied every other week, from spring until fall.

Best Fertilizer For Nemesia

The best fertilizer for Nemesia is a gentle organic formula, such as Down to Earth Organic Bio-Live Fertilizer Mix. AgroThrive Fruit and Flower Organic Liquid Fertilizer is another good choice for supporting blooms without promoting excess foliage growth. The fertilizer should be labeled with an NPK ratio less than 10-10-10. Slow-release and water-soluble fertilizers are both excellent options for Nemesia and which product to use is a matter of preference. Gardeners who wish to be more hands-off may prefer a slow-release plant food since it requires one application.


Nemesia Fertilizing Tips

  • Amend the soil for Nemesia with organic compost or manure when planting
  • Use a balanced fertilizer with a low nitrogen content
  • Depending on preference, apply a slow-release fertilizer once during the spring or a water-soluble fertilizer every two weeks from spring through fall


-Always wear protective gloves and a face mask when handling chemical fertilizers.

-Closely follow all directions and storage guidelines that are on the fertilizer label.


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Author Alison Cotsonas - Published 09-01-2022