Fertilizers

2 images of a person pouring fertilizer onto the dirt in the garden and a second image of a hand holding up dirt in the garden with elements of the soil, showing all around

Timing – How Often:calender with no month indicated sitting on table next to white coffee cup with cactus planted inside and beautiful plants blurred in the background

  • Vegetables – Fertilize vegetables monthly
  • Fruit & Shade Trees – Fertilize 3 times per year; in March, June and October.
  • Shrubs – Every 2 months
  • Perennials – Monthly
  • Annuals – Monthly
  • Natives –We recommend fertilizing natives sparingly with fish or seaweed emulsion in February and September.

Types of Fertilizers: SummerWinds Nursery carries a number of types of fertilizers, including: organic fertilizer, liquid, water soluble and granular fertilizer.

NPK Labelling of FertilizersChart for fertilizer that shows N for nitrogen, P for phosphorous and K for potassium and it says green foliage, strong roots and healthy growth

The numbers on the bag associated with each letter are the percentages of that element. For example, 16-4-8 is 16% nitrogen, 4% phosphorus, and 8% potassium.

  • Nitrogen (N) – helps with leaf development and makes your lawn green
  • Phosphorous (P) – aids in root development
  • Potassium (K) – Vital for disease resistance and root development

E.B. Stone Organics Fertilizers

SummerWinds Nursery carries a wide variety of fertilizers, including those from E.B. Stone Organics. Some of our favorites are:

4 lb box of e.b. stone organics all purpose plant food or fertilizerAll Purpose Plant Food

5-5-5 is an organic fertilizer ideal for vegetables, trees, shrubs, lawns, and flower gardens. Registered cdfa.



E.B. Stone Organics Azalea, Camellia & Gardenia Food 4 lb. BoxAzalea, Camellia & Gardenia Food

E.B. Stone Organics Azalea, Camellia & Gardenia Food 5-5-3 is ideal for use with azalea, camellia, and gardenias, as well as other acid-loving plants such as, rhododendrons, fuchsia and evergreen conifers. Registered cdfa.



4 lb. box of e.b. stone organics citrus and fruit tree food or fertilizerCitrus & Fruit Tree Food

E.B. Stone Organics Citrus & Fruit Tree Food 7-3-3 is ideal for use with citrus trees, fruit trees and other fruit producing plants such as berries. Also good for shade trees, flowering trees, and vines. Registered cdfa. Pair with E.B. Stone Naturals Soil Sulfur.



4 lb bag of e.b. stone organics hibiscus & palm food or fertilizerHibiscus & Palm Food

E.B. Stone Organics Hibiscus & Palm Food 6-5-3 is ideal for palms, hibiscus, and other tropical plants. Registered cdfa.



4 lb box of eb stone organics rose & flower foodRose & Flower Food

E.B. Stone Organics Rose & Flower Food 5-6-3 is suggested for roses, perennials, and other flowering plants. Long lasting, slow-release nitrogen. Registered cdfa. Use with E.B. Stone Organics Rose Grow Planting Mix and E.B. Stone Naturals Soil Sulfur.



E.B. Stone Organics Sure Start Fertilizer 4 lb. boxSure Start

E.B. Stone Organics Sure Start 4-6-2 is ideal for newly transplanted plants. It encourages the development of strong roots. Registered cdfa.



E.B. stone organics tomato and vegetable foodTomato & Vegetable Food

E.B. Stone Organics Tomato & Vegetable Food 4-5-3 can be used throughout your vegetable garden, in addition to being used with soft fruits (such as strawberries) to produce high-quality fruits and vegetables. Registered cdfa.



4 lb box of e.b. stone organics ultra bloom plant food or fertilzerUltra-Bloom Plant Food

E.B. Stone Organics Ultra Bloom Plant Food 0-10-10 is good for all plants, particularly Azaleas, Camellias and Rhodenderons. Add to flowering plants when buds begin to form. In addition to encouraging the development of flowers and fruit, this fertilizer also helps plants resist disease. Registered cdfa.





espoma organic bulb-tone fertilizerEspoma Organic Bulb-Tone®

Espoma Organic Bulb-tone is an all-natural, organic plant food tailored for spring and fall bulbs in Bay Area gardens, offering slow-release nutrition for bigger, more vibrant blooms. Made with high-quality ingredients and no fillers, it’s produced in a solar-powered facility to ensure consistent quality. Safe for people, pets, and the environment, Bulb-tone is ideal for local favorites like tulips, daffodils, crocuses, and more. Trusted by gardeners for over 65 years, it’s the perfect choice for thriving Bay Area blooms.

True Organic™ Fertilizers

True Organic™ dry plant food is blended from natural and organic farm-grade ingredients that are proven to be extremely beneficial for both plants and soil. These ingredients include seabird guano, shrimp shell and crab shell meal, poultry manure, and soybean manure. It does not contain any sludge fillers or additives.

A photo of True Organic Herb & Leafy Greens Food - Organic FertilizerHerb & Leafy Greens Food

This 4-4-6 organic fertilizer was developed to produce abundant herbs and leafy greens. For both in-ground and container plants. Contains 7% calcium and 1% sulfur. 4 lb. granule package.



A bag of True Organic Raised Bed Food - Organic FertilizerRaised Bed Food

This 6-3-6 organic fertilizer is designed specifically for use in raised bed gardens. Apply every 2 months during the growing season. Contains 5% calcium and 1% sulfur. 4 lb. granule package.



True Organic™ Liquid Plant Food

True Organic™ Liquid plant food is blended from natural and organic farm-grade ingredients proven to be extremely beneficial for both plants and soil, in particular soy protein hydrolysate - a potent biostimulant that:

  • Improves germination, productivity, and quality of a wide range of crops.
  • Improves root and shoot growth and increases photosynthesis.
  • Stimulates plant-hormone like response (Gibberellic Acid, Auxin).
  • Improves reistance to environmental stresses.
  • Enhances nutrient availability in plant growth substrates and increases nutrient uptake and nutrient-use efficiency in plants.
  • Stimulates plant microbiomes community.
  • Induces disease resistance in plants.

A bottle of True Organic Liquid Bloom Boost - Organic FertilizerLiquid Bloom Boost

This 2-3-2 organic liquid fertilizer was developed as a bud, bloom and blossom booster. For both in-ground and container plants. Apply every two weeks during growing season. 2 oz. of fertilizer per gallon of water. 16 oz. concentrate squeeze bottle with flip-top cap.



A bottle of True Organic Liquid All Purpose Plant Food - Organic FertilizerLiquid All Purpose Plant Food

This 3-2-2 organic liquid fertilizer was developed for use with organic fruits and flowers. For both in-ground and container plants. Apply every two weeks during growing season. 2 oz. of fertilizer per gallon of water. 16 oz. concentrate squeeze bottle with flip-top cap.



A bottle of True Organic Liquid Tomato & Vegetable Food - Organic FertilizerLiquid Tomato & Vegetable Food

This 3-2-2 organic liquid fertilizer was developed for organic fruits, vegetables and herbs. For both in-ground and container plants. Apply every two weeks during growing season. 2 oz. of fertlizer per gallon of water. Covers 30 sq. ft. 16 oz. concentrate squeeze bottle with flip-top cap.



Our Trusted Garden Advisors are available to answer all of your questions about how to create the ideal growing conditions for your plants.

At SummerWinds, We Guarantee Success!