👉Bark and Wood Chips

Organic mulch is such a wonderful solution that doesn't cost you a cent. You even can choose any types of mulch which comes from a free source in your own yard waste.
Below is Bark and Wood Chips that we recommend along with its pros and cons for you to consider:

Bark and wood chips are common types of mulch at suppressing weeds and create a beautiful look in doing so. They are so excellent that they make the effect to prevent weed growth, erosion, and insulate the soil. You can get wood chips for free from aged bark at the flower garden in many sizes.
Inside the wood chips, they contain tree bark, leaves, and inner wood. Because of its diversity in sizes and texture, wood chip mulch helps to reduce the compaction and increase biological diversity so that the soil health could be improved in the long term.
Wood chippings decay to create the best mulch for trees and shrubs, or flower beds. You should lay the mulch depth of about 2 - 4 inches, depending on its size and type, and the health of the ground. The larger ones may be more deeply.

✅Advantages: be inexpensive or even free, add more organic matters for perennial plantings, slow down the evaporation of water, suppress weeds, and moderate soil temperature. It can also reserve the soil compaction, making the garden more attractive with its natural look.
❌Disadvantages: wood chips could contain some harmful pesticides that harm your ecosystem in the gardens. Some fresh wood might make nitrogen deficiency on the soil surface and attract termites or roaches.
Here is some information for your reference, if you have any questions, please contact GREEN ARBOR LANDSCAPING (206) 265-2940 for advice.