Peters Professional 18-8-17 Peat-Lite High Mag Special Fertilizer | 25lb (80/PL)

25lb High-Magnesium Peat-Lite Fertilizer, 18-8-17

Higher-alkalinity irrigation water often leaves foliage pale rather than deep green, even with a generally balanced feeding program. Peters Professional 18-8-17 Peat-Lite High Mag Special Fertilizer is a highly effective stand-alone fertilizer with extra magnesium to maintain deep green foliage.

Sold as a 25lb bag, 80 per pallet, acidic 381 lbs. CCE, no urea.

Key Features & Benefits

• Highly effective stand-alone fertilizer — formulated for constant, balanced nutrition on its own.
• Extra magnesium — helps maintain deep green foliage.
• Excellent stand-alone for Water Types 3 and 4 — or as a base fertilizer in Water Types 1 and 2.
• Complete range of essential micronutrients — rounds out the high-magnesium 18-8-17 ratio.
• Acidic 381 lbs. CCE, no urea — a higher-basicity technical profile suited to alkaline water.

Who Should Use Peters Professional 18-8-17 High Mag Peat-Lite Fertilizer

This fits growers on Water Types 3 and 4 who want a stand-alone feed, or growers on Types 1 and 2 using it as a base fertilizer layered with a customizing component.

About Peters Professional 18-8-17 High Mag

Peters Professional 18-8-17 High Mag is one of 13 water-soluble formulations manufactured by ICL Growing Solutions for commercial greenhouse and nursery nutrition programs.

Frequently Asked Questions

Why does this formulation include extra magnesium?

It's a highly effective stand-alone fertilizer with extra magnesium to maintain deep green foliage, addressing a common gap when irrigation water runs higher in alkalinity. That extra magnesium is the defining feature of the High Mag formulation.

Can this fertilizer be used across all water types?

It's excellent stand-alone for Water Types 3 and 4, and can be used as a base in Water Types 1 and 2. On lower-alkalinity water it's typically paired with a customizing fertilizer rather than used alone.

Does this product have any special shipping requirements?

Yes, this 18-8-17 High Mag formulation ships hazardous, so confirm your shipping method can accommodate that classification before ordering. This High Mag formulation's extra magnesium content is what drives the hazardous classification, so plan shipping lead time accordingly.

What does the acidity rating mean for growing media?

This formulation carries a rating of acidic 381 lbs. CCE with no urea, indicating a stronger acidifying effect over repeated applications than a neutral formula. That acidifying action is useful for offsetting alkaline irrigation water.

What size and packaging is this listing?

It ships as a 25lb bag, supplied 80 per pallet, matching its acidic rating of 381 lbs. CCE. That volume suits commercial greenhouse feeding programs on higher-alkalinity water.

How and when should this fertilizer be applied?

Use it as a stand-alone feed at every watering on Water Types 3 and 4, or as the base component of a two-fertilizer program layered with a customizing formula on Types 1 and 2. Its extra magnesium works best delivered continuously through the feeding cycle rather than as an occasional correction.