Mulch guidelines with plant-based mulch

Always 100% natural, plant based mulch, on top of being extremely ornamental, also has the special advantage of turning into excellent fertilizer.

As it breaks down, plant mulch spreads nutrients into the soil, essential elements that will help plants develop well.

Key plant-based mulch facts

Availability – high
Cost – low
Ornamental value – common to striking

Thickness, ornamental – 2 in (5 cm)
Thickness, enrichment – 8 in (20 cm)
Renew rate – every 6 months to two years

Its also possible to put plant-based mulch as an underlayer to mineral mulch to have the advantages of both.

Plants and plant mulch

It is perfectly suited to mulching on flower beds and greenery beds, especially annuals and biennials.

But it is also great for trees and shrubs, rose trees, vegetable patches, heath plants and botanical gardens.

Advantages of plant-based mulch

• 100% natural origin
• Fertilizes soils and avoids use of fertilizer
• Seasonal ornament of the latest fashion
• Reduces water evaporation in summer and thus watering
• Hinders weed growth
• Protects plants from winter frost spells

Different types of plant mulch

Always 100% organic and very trendy, plant-based mulch is available from different sources:

• Bark
• Flax
• Cocoa hulls
• Wood chips
• Ramial Chipped Wood

Plant mulch to enrich soil

Each are ornamental in their own respect, and all share nutrients to the growing bed as well. The origin of the plant mulch, however, influences the richness of the soil once it’s broken down.

Grassy mulches

Includes grass trimmings, flax mulch, cocoa hull mulch and to a lesser degree recycled waste such as coffee used in the garden.

Grass-based mulches provide an excellent nitrogen boost for a single season. They break down quickly and their nutrients are ready for use within the season.

However, the nutrient package isn’t as complete as that of wood-based mulches. Grassy mulches don’t promote soil structure nearly as much as wood-based mulches do.

• Don’t discard grassy mulch, though! Its value as mulch is still exceptionally high. It’s worth collecting and spreading them as much as you can, too!

Woody mulches

Includes all sorts of bark mulch, pine bark mulch, wood chips and Bois Raméal Fragmenté or Ramial chipped wood.

Wood, especially hardwood, is made by plants to last for centuries. Loaded with trace elements and minerals, they provide an excellent source of rare nutrients for common flowers, fruits, and vegetables.

The nutrients wood delivers as it breaks down is of much higher quality. It has even been shown to make tomato and other vegetables much more savory compared to grassy mulches!

Wood requires many more different types of beneficial animals and fungus to be broken down.

• Collectively, these form a community that helps plants grow much healthier – and tastier!

Read also:

• Mineral mulch

Plant mulch on social media

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Credits for images shared to Nature & Garden (all edits by Gaspard Lorthiois):
Woodchips in a garden bed (also on social media) by Florentaise
Mineral and plant mulch by Florentaise