Irrigation and Reuse

Suggested Irrigation

As a rule, irrigate to maintain the surface of Growstones moist to touch about 1” below the substrate surface. For NFT systems, maintain thin film of nutrient solution flowing at all times.

Containers For recently transplanted seedlings – irrigate once to twice a day. Irrigate until drainage is visible from bottom of container and frequent enough to maintain Growstones moist to touch about 1” below the surface at all times.

Manual Irrigation – Manual irrigation in Growstones is generally recommended for low water usage plants such as aromatic herbs, perennials or short cycle vegetable plants grown in individual containers. Irrigate thoroughly until drainage is visible at bottom of container and frequent enough to maintain substrate moist to touch about 1” below the surface at all times.

How To Reuse Growstones

Growstones are a reusable plant-growing medium. To reuse Growstones in a second crop, simply remove old plant material from the container and shake vigorously to displace most of Growstones attached to roots. If necessary, to get rid of the root ball, as is the case for crops with strong roots such as tomatoes, simply cut the base of the stem at the root ball level, and remove the root ball. Some Growstones aggregates will be clinging tightly to these roots and might be lost. Some finer roots actually grow into the aggregates and might remain attached to the media, but most will fall out. Add some new Growstones to replenish the system and replant again by repeating steps 2 through 4. As with any media, it is recommended to sterilize the previously used Growstones to eliminate any pest or disease that may be present before reusing the Growstones in another crop. When available, steam sterilization is the most recommended method. Growstones can be steam sterilized without losing physical integrity. Alternatively, Growstones can simply be tilled into soil to improve soil texture and

Add some new Growstones to replenish the system and replant again. As with any media, it is recommended to sterilize the previously used Growstones to eliminate any pest or disease that may be present before reusing the Growstones in another crop. When available, steam sterilization is the most recommended method. Growstones can be steam sterilized without losing physical integrity. Alternatively, Growstones can simply be tilled into soil to improve soil texture and structure.

Growstone, Inc.
7600 Reading Ave SE
Albuquerque, NM 87105

info@growstone.com
505.908.9701