Do I need special soil for hydrangeas?
Hydrangeas do not universally require ericaceous soil. Only specific varieties, mainly Hydrangea macrophylla, depend on acidic conditions to produce blue flowers. Other types are more pH tolerant and will thrive in a range of soil types as long as drainage and organic matter are adequate. Hydrangeas thrive in part shade, well-draining soil, and consistent moisture. Plants that are sun-loving, nutrient-hungry, or invasive are incompatible. Common ones include sunflowers, lavender, roses, spring bulbs, herbs, and some trees.For hydrangeas planted in ground. For optimal growth, bloom production, and quality, fertilize three times: In early spring when plants are just leafing out. In early May to boost their flower production for summer. In late June/early July to help your plants finish the summer strong.To help prepare growing hydrangeas for winter, add a fine bark mulch to the base of the hydrangea plant. Remove the top inch of compost and replace with the mulch to add a layer of protection for the winter season.But hydrangeas are water-loving plants; they prefer moist soil and evolved to live in humid conditions. They also use water to cool themselves off in high heat. These needs are incompatible with the hotter summers and longer droughts that climate change has made our new reality.Hydrangeas will die back on their own and develop new blooms in spring, but over time, failing to prune them can reduce new growth and blooms, causing the plant to look leggy. Pruning encourages new growth for the next season.
What is the best fertilizer for hydrangeas to bloom?
An organic fertilizer formulated for acid-loving plants, such as Holly-tone, is the best choice for hydrangeas that thrive in lower pH soil, including bigleaf hydrangeas, oakleaf hydrangeas, and mountain hydrangeas. It essentially changes the pH of the foliage, which makes it unpleasant for the fungus. The pH of baking soda is pretty high (about 9-ish). That bit of info tells you that if you apply it to the soil, you have a high probability of raising the pH, which for hydrangeas isn’t good. A good pH for this genus is about 6.
What potting soil is best for hydrangeas?
Hydrangeas prefer soil with organic matter (like Rosy), which improves water retention and adds nutrients (like nitrogen and potassium) crucial for the new growth of flower buds. Potted hydrangea can thrive in acidic soil and alkaline soil. At the end of the season, you might plant your hydrangea out in the garden or give it to a friend who has space in their landscape. Permanent plantings stay in the same container for several seasons before either getting transplanted into a bigger pot or to a spot in the garden.