September Planting: What Gardeners and Growers Should Know

September is one of the busiest autumn months in gardening and horticulture. Harvesting often overlaps with planting new crops and preparing for winter. Properly performed tasks ensure that plants begin the next vegetation season strong and healthy.

What to plant in September?

In the orchard

• Fruit trees and shrubs – apple, pear, plum, cherry trees, as well as currants, gooseberries, raspberries, and blueberries. September is one of the most favorable months to plant them, as they have enough time to root before winter.
• Ornamental plants and conifers – thuja, spruce, juniper, especially if grown in containers.
• Roses – autumn planting allows for more abundant flowering in spring.

In the vegetable garden

• Winter garlic – planted at the end of September to root well but not sprout leaves before frost.
• Winter onions – best planted in late September to early October.
• Strawberry seedlings – if not planted in August, it is still possible in September, but the earlier, the better they will establish.

In flower beds

• Bulbous flowers – tulips, daffodils, crocuses, hyacinths, ornamental alliums are planted from late September through October.
• Perennials – September is ideal for dividing and transplanting perennials, as they still have time to establish.

How to ensure successful establishment?

Autumn planting requires special attention to the root system and soil preparation. Modern biostimulants and organic fertilizers play a key role here.

• HUMIRIZ – a rooting stimulator enriched with humic and amino acids, seaweed extract, and mycorrhizal fungi. It helps plants establish faster, activates beneficial soil microflora, and ensures efficient nutrient uptake even in poorer soils.
• HUMIROOT – a root activator that reduces transplant stress and promotes abundant root growth. Particularly suitable for fruit trees, shrubs, vegetables, and flowers.
• HUMISAP TAB – planting tablets containing hydrogel, mycorrhizal fungi, and nutrients. They retain moisture in the root zone and supply plants with nutrients for 2–3 years. Ideal for fruit trees, shrubs, and flowers.
• HUMISAP TAB PINE – tablets specifically designed for conifers, helping them establish faster and grow stronger in acidic soils.
• FRASS’ON – organic insect frass fertilizer, rich in humic substances, chitin, and microelements. It improves soil structure, activates microorganisms, and enhances plant resilience to stress.

Autumn fertilization – preparing for winter

When planting or tending existing plants in September, proper fertilization is essential. Autumn fertilizers should contain less nitrogen but be rich in phosphorus and potassium, as these elements strengthen the root system and help plants prepare for overwintering.

Autumn Fertilizer for Lawns, Garden and Vegetable Plants is an excellent choice – it strengthens root systems, stimulates lateral root growth, improves soil structure, and boosts microbial activity. Fertilized plants overwinter more easily, regrow faster in spring, and are more resistant to diseases.

September is a month full of opportunities for gardeners: not only to harvest but also to prepare for the upcoming season. Choosing the right planting time, preparing the soil well, and using biostimulants together with autumn fertilizers are proven ways to ensure that gardens and vegetable patches come back even stronger in spring.