Notice
From March through June, all plants are sent in full leaf and actively growing. It’s normal for them to look a little tired after their journey—some wilt, bent stems, or loosened soil can happen during shipping. Don’t worry! With a good drink of water and a few days to settle in, your plants will bounce right back and start thriving.

Slow Release Fertilizer | SR-18-5-10 fertilizer plus Minor Elements | 16 Oz. Bag

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Regular price $9.99
States Not Serviced: AK, HI, PR
Zones Open for Shipping: 3-11
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Slow Release Fertilizer | SR-18-5-10 fertilizer plus Minor Elements | 16 Oz. Bag
Plant Factory Direct

Slow Release Fertilizer | SR-18-5-10 fertilizer plus Minor Elements | 16 Oz. Bag

Description
Slow Release Fertilizer | SR-18-5-10 fertilizer plus Minor Elements | 16 Oz. Bag
SR-18-5-10 fertilizer is a slow release fertilizer designed to nourish your plants for up to 10 months. This product ensures your plants receive consistent nutrients over time, promoting healthy growth. The slow release formula reduces the need for frequent applications, saving you time and effort. Ideal for both novice and experienced gardeners, this fertilizer supports vibrant, thriving plants.

Gardeners love SR-18-5-10 fertilizer for its long-lasting, balanced plant nutrition. Its timed-release formula ensures plants receive nutrients for an extended period without frequent reapplication. Plus, the technology prevents burning or overfeeding. Trust SR-18-5-10 for reliable, cost-effective, and robust plant growth year-round.

 

How long will it last? 

Our 16 oz. bag is perfect for feeding multiple shrubs and trees in your garden. Recommended rates may vary depending on the size of your plants and trees. Avoid placing fertilizer directly next to the stem of any plant, as this can cause damage. Instead, spread it around the "drip line" - about 4-6 inches away from the plant's stem. Be aware that different plants have different fertilizer needs, so research your plant/tree's appetite. Our customer service team can provide guidance on the approximate amount needed. Send us a message for personalized recommendations.
Here are recommended guidelines for application:

QT 5" equivalent size shrub – 9-12 grams per plant/tree
1 Gallon equivalent size shrub – 38-40 grams per plant/tree
3 Gallon equivalent size shrub – 124-130 grams per plant/tree
5 Gallon equivalent size shrub – 130-140 grams per plant/tree

Always keep plant fertilizers away from children and pets. If you have small children or pets, simply bury it under the soil or mulch. All plant food is harmful if ingested. It is your responsibility to take every precaution to ensure it doesn't get in the wrong hands.

Ordering:

Orders taken after 4:00 pm on Wednesday through Sunday will be shipped the following Monday – Wednesday. We do not want your order to sit in a warehouse or on a truck over the weekend.

Shipping:

Our fertilizer bags will ship UPS ground alone, or included in your plant order.

 

Frequently Asked Questions

What is 18-5-10 fertilizer used for?

It’s a balanced NPK fertilizer formulated to support steady vegetative growth, strong roots, and overall plant vigor. It’s commonly used as a long-lasting plant fertilizer for shrubs, landscape plants, and many ornamentals. For best results, apply it around the drip line rather than directly against the stem.

How long does 18-5-10 fertilizer last?

As a slow release fertilizer, it can provide plant nutrition up to 10 months depending on weather, watering, and plant demand. The timed-release fertilizer design helps deliver nutrients gradually instead of all at once. This reduces the need for frequent reapplication during the growing season.

Can 18-5-10 fertilizer be used as a slow release fertilizer for trees?

Yes, it works well as a slow release fertilizer for trees when applied evenly around the drip line. Keep the granules several inches away from the trunk and avoid concentrating it in one spot to help prevent damage. Watering after application can help move nutrients into the root zone.