(10.8% Mg, 22% S) Langbeinite is a marine deposit of potassium sulfate and magnesium sulfate in soluble form. A good source of immediate potassium for depleted soil and of magnesium where calcium is abundant. Alliums like its sulfur and potatoes like its quick boost of potassium. If you are looking for an allowed Sul-Po-Mag, this is it. Application rate: based on soil test, or 10-20# per 1000 sq ft.
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Orders with subtotals $1,200 and above receive bulk pricing.
If you have placed orders totaling at least $1,200 within the past 12 months, additional orders qualify for bulk pricing.
Bulbs begin shipping in late September.
From early May through October 31, items shipping from our garden seeds warehouse ship twice a week, usually Tuesday and Thursday. For quickest turnaround time order online by noon Monday or Wednesday.
Items shipping from our growing supplies warehouse take 2-4 business days to process.
Orders with subtotals $1,200 and above receive bulk pricing.
If you have placed orders totaling at least $1,200 within the past 12 months, additional orders qualify for bulk pricing.