RedRock Starter Block

The RedRock Starter Block is a clean, stable, and pH-neutral block designed to give seedlings and clones the perfect start. Created for quick rooting and healthy early development, it’s made from premium expanded clay aggregate and fired at over 2,000°F — offering exceptional porosity and drainage that ensures consistent oxygen flow to young roots and prevents waterlogging. Dust-free with a uniform size, it helps maintain stable EC levels and nutrient uptake right from the beginning so your plants can have the best possible start of their lifecycle. It’s also reusable, meaning it’s a great choice for both environmentally conscious and conventional growers that want enhanced early-stage cultivation performance with reliable, repeatable results. For more durable early-stage support, check out the RedRock Starter Block PRO. Looking for consistent performance for all growing stages? The versatile RedRock Grow Block has you covered.