Arlene’s Fertilizing Tips

Don’t forget to fertilize if you haven’t amended your soil, added compost or any organic matter before planting!
Use the correct kind of fertilizer for each of your different plants, shrubs and trees! Too much nitrogen (the first number of the fertilizer) will produce a lot of leaf, with little bloom for your blooming plants and ornamental trees and shrubs.
Always fertilize when your plants are well watered, never when they are dry as they may get leaf burn.

For your blooming plants, use a fertilizer with high phosphorus (a high middle number fertilizer), such as Miracle Gro 15-30-15. Follow the directions and fertilize right through until frost!


I recommend using an organic fertilizer such as Tomato & Vegetable fertilizer made by Bio Fert Manufacturing from B.C.. It’s all organic; contains blood meal, plant extractions (alfalfa), kelp & soybean mulch and fish emulsion without the odour! The numbers are 2.5 – 1 – 4. It produces richer tasting vegetables with a longer shelf life.


For leafy plants like Hosta, use an all-purpose fertilizer like a Miracle Gro 20-20-20.


Make sure you use an evergreen fertilizer. They are acid lovers and require a different fertilizer than deciduous trees and shrubs. Use a fertilizer specific to evergreens. Azaleas, blueberries and Rhododendrons are also acid lovers.


In particular, your blooming ones, use a high phosphorous such as you would use for your blooming plants, such as a Miracle Gro 15-30-15.

Established trees need only to be fertilized every few years, while recently planted trees and shrubs need to be fertilized every year. There are several factors that should be considered in deciding whether or not to fertilize. Observe the general vigor of the plant and the colour of the foliage. Undersized leaves and short new twig growth generally indicate a need for fertilizer. Yellowing leaves, if you can still see the green veins, generally indicate a lack of iron and an iron should be added to the soil or sprayed on the leaves. At times the application of a fertilizer will also correct the problem.

Stop all fertilizing after the second week in August at the very latest for everything except annuals. If you continue to fertilize, plants, trees, shrubs and especially roses, they won’t have time to prepare for winter. You don’t want a lot of new growth going into the frosty season!

Keep your plants healthy with what they require for nutrient and you will have fewer problems with insects and disease!!!


5 Year Warranty on Shrubs and Trees - Jensen's Nursery and Garden Centre - Garden Center - Winnipeg - Manitoba