21-7-7 Weed Choker
$16.00 – $27.00
- Fertilizer can only be delivered if purchased together with a sack of soil, mulch, or our other products sold in sacks
- Buying it separate? Select Pick Up In-Store at Checkout!
The weed choker is recommended for second fertilizing 6 weeks after first application. Also used in late fall. This fertilizer is a great bang for the buck.
To choke out the weeds in your lawn we recommended that fertilizing every 6-8 weeks from snow melt to snow fall. This 21-7-7 weed choker lawn fertilizer can be used year round if applications rates are adjusted according to the temperature.
10KG or 25KG bags available
Application: 5lbs per 1000 square feet
Coverage: 11,000 square feet
What does 21-7-7 mean?
1ST # NITROGEN – FAST GREEN, THICK LAWN, STRONG STEM GROWTH
2ND # PHOSPHORUS- BUILD UP ROOT SYSTEM
3RD # POTASH- STABILIZES SOIL FOR DARKNESS OF COLOUR) BAG
Importance of Fertilizer
Fertilizing is an important lawn care practice as it influences grass colour, increases its ability to recover from stress, and prevents weed invasions and disease.
The three major nutrients needed by lawns include nitrogen (N), phosphorus (P), and potassium (K). Above all, Nitrogen, the nutrient needed most, can lead to problems associated with excessive top growth there is too much.
The percentage of nitrogen by weight is always the first of the three numbers on the fertilizer bag, followed by phosphorus and potassium. The percentage of nitrogen determines the amount of fertilizer needed. We suggest a rate of 1 pound of nitrogen per 1,000 square feet for each fertilizer application to the lawn. Additionally, if high percentage nitrogen fertilizers are used, then less actual fertilizer product is needed to supply that one pound, compared to fertilizers with lower percent nitrogen. However, too much nitrogen can lead to issues. Therefore, nitrogen is not the only nutrient to consider.
Fertilizer is available in 25kg and 10kg bags and therefore can be picked up at our Markham or Oro-Medonte yard.