{"title":"Oldcastle","description":"\u003cp\u003eOldcastle products are built around proven landscape fundamentals—reliable materials that help you shape, maintain, and improve outdoor spaces. As part of Oldcastle APG (a CRH company), Oldcastle spans a broad range of landscaping solutions used in residential and commercial projects, including landscape materials that support healthy outdoor environments and long-lasting results.\u003c\/p\u003e\n\u003cp\u003eIn this collection, you’ll find Oldcastle lawn and garden essentials chosen for practical performance in real-world growing conditions. Oldcastle’s limestone-based soil amendments are widely used for soil pH adjustment and soil conditioning—helping bring overly acidic soil back toward a more balanced range so plants can make better use of available nutrients in the root zone.\u003cbr\u003e\u003cbr\u003eIf you’re looking for dependable inputs for outdoor soil care—whether you’re maintaining turf, refreshing garden beds, or building a steadier foundation for seasonal planting—Oldcastle is a strong fit for straightforward, results-focused landscape and garden upkeep.\u003cbr\u003e\u003c\/p\u003e","products":[{"product_id":"pro-select-dolomitic-pulverized-limestone-50-lb","title":"Pro-Select Dolomitic Pulverized Limestone - 50 LB","description":"\u003cp\u003eOldcastle Pro-Select Dolomitic Pulverized Limestone is a dolomitic limestone soil amendment for lawns and gardens, made to correct soil pH and address soil acidity so plants can access nutrients more effectively.\u003c\/p\u003e\n\u003cp\u003eThis garden lime is a fine, pulverized limestone product built for straightforward soil conditioning when you’re working with acidic ground. By helping neutralize acidity, it supports a more balanced root-zone environment and can improve overall nutrient availability in the soil. It’s a practical fit for gardeners and turf managers who want a dependable, professional-grade liming material without turning their soil program into something complicated.\u003c\/p\u003e\n\u003cp\u003eBecause it’s dolomitic limestone, it also contributes the secondary elements calcium and magnesium—two nutrients many soils rely on for strong structure and steady plant development. Calcium plays a key role in soil structure and root function, while magnesium supports core plant processes tied to healthy green growth. Together, these benefits make Oldcastle Pro-Select Dolomitic Pulverized Limestone a solid option when you’re aiming for steadier performance from your existing fertilization plan, especially in areas where acidity can hold plants back.\u003c\/p\u003e\n\u003cp\u003eOldcastle Pro-Select is positioned as an economical acid soil amendment that still delivers professional results for turf and ornamental landscapes. It’s often chosen for broad lawn and garden coverage where consistent soil pH correction matters over time, and where growers want a natural limestone input that integrates cleanly into standard soil care routines. If you’ve been seeing signs that your soil is trending acidic—like reduced vigor, uneven growth, or difficulty maintaining consistent performance—this type of pulverized dolomitic limestone is a targeted way to bring the soil back toward a more workable range.\u003c\/p\u003e\n\u003cp\u003eFacts layer: this is a dolomitic limestone product, built from limestone carbonates associated with calcium and magnesium (including calcium carbonate and magnesium carbonate). Those carbonate minerals are what provide the liming action and the calcium-and-magnesium contribution that makes dolomitic lime distinct from calcitic lime.\u003c\/p\u003e\n\u003cp\u003eThis product is a good fit for growers and landscapers who want a lawn and garden lime focused on soil pH correction, soil acidity neutralization, and calcium and magnesium support—especially in outdoor soil-based setups where long-term soil conditioning is part of the goal.\u003c\/p\u003e\n\u003cp\u003eHow to use:\u003cbr\u003eHow to Use Dolomitic Limestone With a Basic Soil pH Tester:\u003cbr\u003eCheck your soil pH first Use your soil pH tester in a few spots (not just one). Soil pH can vary across a lawn or garden bed, so taking multiple readings gives you a more reliable average. Decide if you actually need to raise pH If your pH is already in a good range for what you’re growing, you may not need to add anything. If your pH reads too acidic, this type of soil amendment is typically used to gently move pH upward over time. Apply a small amount first (don’t try to “fix it” in one shot) Because a basic pH tester doesn’t calculate an application rate, the best method is gradual adjustment: Spread a light, even layer over the area (or mix a small amount into potting mix for containers). Avoid heavy piles or thick coverage in one spot. Water in and wait Water helps move it into the root zone and begins the soil change process. pH adjustment isn’t instant—soil takes time to respond. Re-test later, then adjust if needed After it has had time to work, re-test your soil pH again: If the pH is moving in the right direction but still low, you can repeat a light application. If the pH has reached a healthy range, stop and maintain. Avoid over-correcting Raising pH too much can create new nutrient issues. The “apply a little and re-test” method keeps your garden in the safe zone and helps you dial in results over time.\u003c\/p\u003e\n\u003cp\u003eBest practices for different gardening uses:\u003cbr\u003eLawns Apply evenly using a spreader for consistent coverage. Re-test in different spots before re-applying. Garden beds \u0026amp; raised beds If you’re prepping a bed, mixing into the top layer gives more consistent results. If plants are already growing, apply lightly to the surface and water in. Containers \u0026amp; potting mix Mix thoroughly through the potting mix (don’t leave it layered). Adjust slowly and re-test—containers can change pH faster than outdoor soil.\u003c\/p\u003e\n\u003cp\u003eProduct benefits: Vegetative Stage; Flowering Stage; Indoor; Outdoor; Regular Watering; Soil; Soilless; Organic; Soil Acidity Support; Better Nutrient Uptake; Balanced Root Zone; Calcium Support; Magnesium Support; Soil Structure Support; Consistent Performance; Easy Powder Format.\u003c\/p\u003e\n\u003cp\u003eGuaranteed analysis: Calcium (Ca): 20.0%; Magnesium (Mg): 10.0%; Neutralizing value (CaCO3): 90.0%; Fineness Passes 10 Mesh Tyler Screen: 99.0%; Fineness Passes 100 Mesh Tyler Screen: 42.0%.\u003c\/p\u003e\n\u003cp\u003eDerived from: Dolomite.\u003c\/p\u003e","brand":"Oldcastle","offers":[{"title":"Default Title","offer_id":46408927641756,"sku":"778671754514","price":29.84,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/0300\/8412\/files\/pro-select-dolomitic-pulverized-limestone-50-lb.jpg?v=1778022554"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/0300\/8412\/collections\/Oldcastle_Logo.webp?v=1778893949","url":"https:\/\/provisiongardens.com\/collections\/oldcastle.oembed","provider":"Provision Gardens","version":"1.0","type":"link"}