Plant Food

This organic microbe-enhanced, all-natural starter plant food helps plants establish fast by working to grow a larger root mass. The formula includes both endo- and ectomycorrhizae that reduces transplant loss while promoting bigger blooms.

With a high total nutrient content of 14-14-14, this balanced formula promotes consistent top-growth and strong root development at the same time, which makes it ideal for use with perennial and vegetable gardens. Each granule is coated with a unique resin that controls nutritional release so that plants get what they need when they need it.

The original natural and organic fertilizer for all acid-loving plants, Holly-tone is a slow-release food for evergreens, azaleas, and rhododendrons. Use at planting time by adding to the soil in the hole, and add twice yearly to keep plants vigorous and healthy. Contains active soil microbes for long-term health and superior growth.

The original organic all-purpose plant food for all flowers, vegetables, trees, and shrubs, Plant-tone is 100% made from natural ingredients and contains no fillers or sludges. It breaks down gradually to provide a safe, long-lasting food reservoir that is activated throughout the growing season. Contains active soil microbes for long-term health and superior growth. Plants will grow larger with more blooms and more vibrant color.

This organic fertilizer and iron supplement works fast to turn yellow foliage to green naturally. It’s the ideal companion to Holly-tone or Plant-tone and benefits flowers, vegetables, evergreens, ornamental shrubs, berries, and shade, ornamental, and fruit trees.

A natural and organic fertilizer ideal for growing vegetables and herbs in containers or in the garden, Garden-tone is used to ensure an abundant harvest of cool and warm season vegetables like lettuce, kale, tomatoes, peppers, and squash. It can also be used for herbs like basil, chives, sage, rosemary, parsley, and oregano. Garden-tone is long-lasting and slow release.

A natural and organic fertilizer specially formulated to support the development of plump, juicy tomatoes, Tomato-tone is proven to promote healthy plant growth. It encourages more flowers for best fruit production and contains 8% calcium to help prevent blossom end rot.

A natural and organic fertilizer specially formulated to support the development of roses and other flowering plants, Rose-tone is used and recommended by professional rosarians. It works to grow big, beautiful plants with prize-winning blooms using long-lasting, slow-release feeding and exclusive Bio-tone microbes.

A natural and organic fertilizer specially formulated to support the development of berry shrubs and fruit-producing plants, Berry-tone works to grow larger plants with more fruit in a long-lasting, slow-release fashion. It is ideal for use with blueberries, strawberries, and raspberries.

A natural and organic fertilizer specially formulated to support citrus and avocado-bearing plants, Citrus-tone works to grow bigger, tastier fruit in a long-lasting, slow-release fashion. It is ideal for use on all citrus, avocado, fruit, and nut trees.

A natural and organic fertilizer specially formulated to support the development of flowering bulbs, Bulb-tone is perfect for use at the time of planting and to replenish nutrients from season to season, year over year. It supports spring-blooming bulbs like tulips, daffodils, crocus, hyacinths, iris, gladioli, and all spring and fall bulbs.

Petitti Garden Centers carries a full selection of Jack's Classic Fertilizers including All-Purpose Plant Food, Bloom Booster, Petunia FeEd, Citrus FeEd, Tomato FeEd, Orchid food, and more!