Page 88 - Griffin CEA Catalog- 2026-2027

CROP NUTRITION -WSF

Jack's Nutrients Line

NUTRIENTS & FERTILIZERS three words that you have come to expect when you open
Soluble. Available. Consistent. Since 1947, these are the

a bag of fertilizer made by the Peters’ Family — and now,
the master-crafters at Jack’s introduce our small batch
blends, Jack’s Nutrients: Formulated to deliver complete
nutrition, including highly available micronutrients perfectly
proportioned for CEA crops.

The Jack’s FeED line is comprised of complete nutrient formulations.
Everything your plants need for each stage, from start to finish.
Part A 5-12-26 UltraViolet 5-50-18

Get ready for a serious boost of available
Improved "Part A" formula for general vegetative phosphorus. The primary goal of this formula is to The Jack's Boost line is all the little extras
growing. Purely soluble and available nutrients assist in shutting down the strong vegetative growth your plants may need. Do you need calcium,
2026 to allow maximum flexibility. Specific balance of stage of the plant and support a switch to the extra micros, or extra iron? These and more
macro, secondary and micronutrients delivers an
2027 efficient combination of nutrients suitable for many reproductive or flowering phase of plant and flower are found in the Jack's Boost Line.
different growing environments and crop types. development.
Bloom 10-30-20 Cal Nit Part B 15-0-0
Clone 15-6-17 Need a Boost of Flower Power? Our 1:3:2 major An essential "Part B" provides a very soluble

Like hitting the accelerator for your new plants - nutrient ratio has been trusted by growers for and available source of calcium in a two-part
this formula will help promote strong and fast root over 70 years. This soluble and available nutrient nutrient system. Contains very pure and
growth and expansion. Best used for fertilizing combination stimulates blooming, resulting in heavy completely available calcium and nitrate
young seedlings, transplants, clones and newly bud and fruit set. nitrogen nutrient sources.
set rooted cuttings.
Finish 7-15-30 Cal-Trate 15-0-0
12-4-16 You've always been told to finish strong. Formulated
with very low nitrogen, high phosphorus and very high A great formula for providing a boost of
For the Purest in you. One part blend designed potassium to keep the whole plant happy to the end of potassium and nitrogen along with a balanced
for crops grown in very low alkalinity waters, its crop cycle. micronutrient package. This formula can be
including reverse osmosis (RO). Formulated used on all crops and is especially good for
utilizing innovative raw materials to reduce pH finishing crops off by providing elevated levels
crash while delivering all the nutrients essential for Part A 0-12-26 of potassium while keeping micronutrients on
vigorous plant growth. target at the end of a crop cycle.
Zero nitrogen formula delivers a proven ratio of P
and K to achieve harvest goals. Designed to follow
15-5-20 the Part A system of nutrient delivery. This purely K-Trate 14-5-38
soluble and available formula keeps secondary and
Prefer Tap Water? Allow your plants to drink up micronutrients consistent at each feeding. A great formula for providing a boost of
this formula designed to provide all the macro, potassium and nitrogen along with a balanced
secondary and micro nutrients in a one-part Low Phos Part A 6-6-26 micronutrient package. This formula can be
system. Specifically formulated for tap, city or used on all crops and is especially good for
well water types with low to moderate alkalinity. A unique formula designed to deliver lower finishing crops off by providing elevated levels
Includes extra soluble calcium, magnesium and phosphorus levels into any growing program. Jack’s of potassium while keeping micronutrients on
the right balance of micronutrients. Part A 6-6-26 will replace and/or complement target at the end of a crop cycle.
any two part growing system paired with typical
Outdoor 18-8-23 calcium content from our Jack’s Part B by ensuring Mag-Trate 10-0-0
consistent N, K and micronutrient levels as you
Yep that’s right, a nutrient blend specifically expect in our typical Part A 5-12-26. Jack’s 10-0-0 Mag-Trate LX is formulated
tailored for outdoor production. Potentially acidic to provide an extra boost of magnesium
formulation is designed to keep your pH in the Strawberry Part A 8-10-26 while supplying a balanced supply of
desired range for optimum nutrient uptake. Plus, micronutrients to almost any crop or nutrition
we’ve perfected the N:K 2 O ratio and added a Designed to deliver targeted nutrition specific program. Using Jack's Mag-Trate as a
kick on Mg and S to hit the right balance so that for Strawberry production. This unique formula booster or as part of a regular fertility plan
your plants can thrive in the outdoor, sunlight combines specific macro, secondary and micro will provide the highest quality most soluble
rich environment. nutrients at a low constant feed rate in complement magnesium available in water solubles.
with our Jack’s Part B for the calcium source to
achieve a complete two part system!
88 | CEA/HYDRO CATALOG