Does this come with a weakly weekly dilution guide?

It comes with a plastic teaspoon. I use half of that per gallon of water

I live in California with hard tap water, is this the correct formula for my orchids?

My apologies for my late reply, I have been away lecturing on orchids. Of the three MSU formulas this formula (13-3-15) would be my first choice for hard tap water. My second choice would be K-Lite (12-1-1).

is this used as a bloom buster with the 19x4x23 MSU fertilizer???

No, the formula created as a bloom booster to be used with that blend is NPK 0-18-21. We have it in stock I just haven’t had a chance to list it on here yet

I use clear glass vases and 24 hour water method , is this good for that

I have only used the fertilizer once since I bought it. For orchids, and other plants, be sure there are holes at the bottom for excess water drainage. Orchid roots, or any other plant roots, will rot if they sit in water, and they will die. Orchids, and other plants get watered once a week, or when soil is dry. Hope this helps. I bought this fertilizer mainly for my orchids, but it can also be used on other plants. Good Luck.

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Tezula Plants MSU Orchid Fertilizer 13-3-15 (Greencare) 1/2 Pound, Scoop Included, Excellent for Orchids, Anthuriums, Philodendrons and all tropicals

Tezula Plants MSU Orchid Fertilizer 13-3-15 (Greencare) 1/2 Pound, Scoop Included, Excellent for Orchids, Anthuriums, Philodendrons and all tropicals

Product ID: 58169359

Details

Brand
Tezula Plants
Item Form
Granules
Item Weight
8 ounces
Manufacturer
TZA
Specific Uses For Product
Plant Growth

🌿13-3-15 NPK for vibrant growth

📏Scoop included for precise dosing

🧪100% water soluble & urea-free

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Description

🌸 Feed your tropicals like a pro—bloom brilliance guaranteed!

EFFORTLESS PRECISION - Measuring scoop ensures perfect feeding every time—no guesswork.
AWARD WINNING RESULTS - Trusted by professional growers to produce prize-winning orchids and tropicals.
VERSATILE COMPATIBLE - Formulated for tap, rain, and reverse osmosis water—flexible for any setup.
FULL SPECTRUM POWERHOUSE - Optimized 13-3-15 formula fuels lush blooms and robust roots.
PRO GRADE NUTRIENT BLEND - Includes essential calcium & magnesium—no extra supplements needed.

Tezula Plants MSU Orchid Fertilizer 13-3-15 is a premium, water-soluble granular fertilizer designed specifically for orchids and tropical plants. Featuring a balanced NPK ratio enriched with calcium and magnesium, it supports strong root development and vibrant blooms. The included scoop allows precise dosing, and its formula works seamlessly with tap, rain, or reverse osmosis water. Highly rated by professionals and hobbyists alike, this fertilizer is your go-to for award-winning plant health.

Specifications

ASIN	B077WJNXB4
Best Sellers Rank	#24,741 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #760 in Garden Fertilizers
Brand Name	Tezula Plants
Coverage	Full
Customer Reviews	4.7 4.7 out of 5 stars (452)
Item Form	Granules
Item Weight	8 ounces
Manufacturer	TZA
Mixing Ratio	1 Teaspoon (Scoop Included) Per Gallon
Model Number	627056738390
Number of Items	1
Part Number	PD-23579
Specific Uses For Product	Plant Growth, Root Development
Target Species	Orchids, Anthuriums, Philodendron, Alocasia, Monstera, Hoya, Tropicals
UPC	680132994172
Unit Count	8 Ounce

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¥5652

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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