Cation Exchange Capacity: What is it and why is it important?

This is a complicated subject, and we don’t claim to be experts, but here is a quick and dirty explanation. A soil’s ability to react with positively charged molecules is called it’s cation exchange capacity (CEC). The higher the CEC, the higher the negative charge of the soil and the more cations that can be […]

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Dolomite Lime Flour

Ag Lime, Dolomite, Gypsum, Oyster Shell…What Kind of Calcium Do You Need?

There is a lot more that could be written on this topic, but here are the quick and dirty differences between calcium sources for your soil. Agricultural Lime: Calcium carbonate – CaC03 Pure calcium carbonate is used to help prevent the spread of various diseases, such as powdery mildew, black spot, and blossom end rot. […]


Why Use Organic Fertilizer On My Lawn?

This is a question that comes up a fair amount here at Walt’s. ‘Why use organic fertilizer on my lawn (or any ornamental for that matter).  I’m not eating the grass so it doesn’t really matter right?’   Not exactly. Organic fertilizers (like Walt’s Organic Garden Blend 6-2-5) have a small amount of immediately available […]

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Garlic 101

Garlic is a member of the genus allium, making it a relative of leeks, onions and shallots.  It is one of the oldest cultivated crops, and it makes everything taste better! When to Plant This naturally depends on your location.  In Seattle garlic is typically planted October through November, and then again in late February […]


Covercrop 101

What is cover crop or green manure and why use them? Cover crops can: Protect your soil from runoff and erosion Recycle and supply nutrients Replace soil organic matter Suppress weeds Attract beneficial insects Break up compacted soils         When and why: Cover Crop When to Sow When to Turn Under Key […]

Hairy Vetch Cover Crop

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Fertilizing 101

    Let’s start with the basics: N-P-K: the three primary macro-nutrients required for healthy plant growth.           N is for Nitrogen Nitrogen is a macro-nutrient, important to the green growth for all plants. Common sources of nitrogen include: Fish Meal, Blood Meal, Feather Meal Common symptoms of nitrogen deficiency include stunted […]


How To Overseed Your Lawn

Fall is right around the corner, now is the time to make your overseeding plans! Unfortunately over time even the most cared for lawns thin, overseeding is one of the important things you can do to keep your lawn lush and healthy. Fall and early spring are the best times to overseed your lawn. Here […]

Overseed your lawn