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What does the pH test mean? Different crops and plants (including grass) gener-ally have an optimum pH where they thrive. Some do well in acidic soil (e.g. azalea, blue-flowered hydrangea and potatoes), some between acidic and neutral soil pH (e.g. beans, carrots and corn), and others in the alkaline pH (e.g. alfalfa and sweet clover). For home ...
Most garden soils have a pH between 5.5 and 8.0. This number helps you determine when and how to adjust your garden soil’s pH level. If the pH level is below 6, the soil may be too acidic, and you need to add ground limestone. If the measurement is above 7.5, the soil is too alkaline for most vegetables, and you need to add soil sulfur.
11 kwi 2024 · Use this soil pH chart to find out which pH level is best for your garden plants. Then, learn how to adjust it accordingly! Having the right soil pH is key to growing a healthy garden, but it’s a factor that’s often overlooked in favor of nutrient levels and soil consistency.
Table B-1. Target Soil pH Values for Vegetable Crops Crop Targe t pH Target lime when pH falls below Crop Targe t pH Target lime when pH falls below Asparagus 6.8 6.2 Okra 6.5 6.0 Beans - lima, snap 6.2 6.0 Onions - green, bulb, scallions 6.5 6.0 Beets 6.5 6.2 Parsley 6.5 6.0 Broccoli 6.5 6.2 Parsnips 6.5 6.0
Optimum pH (CaCl2) range up to pH 7.5 for a number of crops and pastures. Above pH 7.5 the acidity/alkalinity is no longer the principal factor that controls growth. Other factors such as phosphorus, zinc, cobalt or boron deficiency or the sodicity of soil are most likely to affect production.
Most ornamental plants grow well in a pH range of 6.0 to 7.0. But some plants, such as azaleas, gardenias, blueberries, and camellias, grow best in a soil pH level between 4.5 and 6.0. Still others, such as hibiscus, chrysanthemum, verbena, and junipers, can tolerate a relatively high pH up to 8.0. For the healthiest growth, provide your plants ...
TREES pH LOW pH HIGH* Magnolia 5.5 7 Maple 6 7.5 Thuja 6 7 Lawn 6 6.5 * You need the higher pH for clay soils and soil with high organic matter. In sandy soils a lower pH is o.k. Columbia River Carbonates www.gardenpearls.com (360) 225-6505 GARDEN PEARLS® Natural Products GIVING BACK TO EARTH!
