Do Potatoes Like Wood Ash?

Apart from potatoes, the majority of garden veggies grow finest in a pH range of 6.0 to 7.5, and root vegetables thrive greatest in a pH range of 6.0 to 6.8. While planting sliced seed potatoes, use wood ash as a coating to keep them from rotting.

Can You Use Wood Ash in your Garden?

Hardwood ashes provide quick-release calcium, potash, and phosphorus to the soil. Wood ashes, like lime, have a rich calcium concentration, which elevates the pH of the soil.

Soil tests, which can be ordered online or at a yard or domestic supply shop, can reveal the proportion of alkalizing solution and main elements required for particular vegetable crops.

Burned wood doesn’t quite retain nitrogen, contrasting the decayed residues of leaves, stems, as well as other natural plant materials. It does, however, contain phosphorus, potassium, calcium, boron, and many other essential minerals for developing plants.

It’s naturally alkaline, which makes it good for increasing the pH in gardens. You’ll require nearly twice as many as lime, however, it will also provide nutrients, plus it’s cheap if you use a wood stove.

Have a soil test performed before you start spreading the ashes around to see if it would help you. Share the ashes with a neighbour who has the most alkaline soil if your backyard or garden ground has a pH of 7 or above.

 Use caution near acid-loving plants like berries or azaleas, as well as potatoes, which can get scab condition if the pH is excessively strong.

Also Read: How Often to Fertilize Cucumber Plants?

Is Wood Ash Good for Potatoes?

In moderate to acidic conditions, potatoes are susceptible to illness. When planting sliced seed potatoes, use wood ash as a dusting to keep them from rotting.

Cutworms can wreak havoc on delicate plants like basil; wood ashes on the sowing soil, and also slugs, are preventative measures.

Potatoes are enthusiastic eaters. Fertility must be added in the manner of manure, compost, or natural plant fertilizers to have the greatest harvest.

You may not even realize how often a high-potash feeding could help them. Potash is potassium (K) in a version that plants may use.

Potash shortage is shown by tubers that are dark in the centre. Yellowing along the leaf edges is yet another indicator.

Also Read: Are Banana Peels Good for Cucumber Plants?

Potassium sources

You may utilize wood ash to enhance your potash concentrations if you have a wood fire. Make sure you use just wood ash. Adding charcoal or peat ash to the mix isn’t a smart idea.

Because wood ash is alkaline, it can assist your soil to become less acidic. Given the considerable precipitation in a lot of places, now most grounds are acidic.

Top Mix (4-3-7) is a new natural plant feed that is perfect for potatoes. It has a good mix of main and secondary nutrients, with high potash content. To obtain the most out of your potato harvest, this is highly suggested.

Potatoes are high-potassium food. Knowing that potatoes require a lot of potash to thrive, it’ll go without saying that they’re a valuable contributor to diet potassium.

Whenever we consider potassium-rich meals, we typically think of bananas, however, don’t overlook the simple potato. Potassium is important for decreasing blood pressure.

As per research published in the Journal of the American College of Cardiology, consuming 1600 mg of potassium per day can minimize your chances of attack by 21%. Potassium is found in 759 mg per medium potato.

Also Read: Can You Plant Potatoes that Have Sprouted?

How Do You Grow Potatoes With Wood Ash?

Cultivating your organic potatoes might appear to be a straightforward thing, however, it can have a significant impact on your self-sufficiency. Potatoes are a relatively close meal, and cultivating your potatoes is the best method to get a lot more calories from a tiny space.

Potatoes thrive in marginal land and are an excellent plant to grow in a small garden region. You may produce potatoes without even a backyard fence because the foliage is undesirable to deer.

Before sowing, potatoes are normally chopped into bits.

You can grow multiple potato plants out of a solitary potato this way. Do people frequently inquire if you can sow the entire potato? Yes, you certainly can. However, cutting potatoes before sowing will result in larger harvests in the long term.

Slice them into bits, ensuring that every potato part has at least 1 eye. Many people would tell that to leave the potato parts out to dry or “heal” the incisions for another few days, however in our humid climate, this only moulds into a big mess.

Slicing the potatoes and afterwards immersing them in wood ash is another approach. In a damp, humid area, this is far more trustworthy, and the additional nutrients in the wood ash would assist the potatoes to develop well enough in the long term.

Also Read: How Long Does it Take to Grow Potatoes in a Bucket?

Composting Wood Ash

Because wood ash is alkaline, adding it to compost piles works to counteract the acidic nature of compost. This even improves the circumstances for compost worms, speeding up the decomposition process.

Mulching over veggies with little acidic compost is ideal. Apply wood ash in light levels, a couple of fistfuls or a shovelful for each 6in (15cm) of stuff is sufficient.

Also Read: Growing Sweet Potatoes from Scraps

Soil With Wood Ash

Wood ash could help to balance out soil that is too acidic. If your ground is below 6.5, scatter wood ash well over the ground and keep raking or fork it all in. Many veggies require a pH of 6.5 to 7.0. If you’re not sure what pH the soil is, check it.

Because cattle dung is quite acidic, wood ash is highly helpful if you placed a bunch of it in your yard. In neutralized acid, wood ash is about half as efficient as lime.

Use around 2 ounces of ash every square yard as a basic guideline (50-70g per square metre). Use gloves to safeguard your palms and do so on a peaceful wintry day.

Plants with Wood Ash

Utilize wood ash’s alkalinity to enhance the ground for vegetables like cabbage and Sprouts. This is a simple way to help stop clubroot, which is a prevalent condition caused by acidic soil. It’s best to use it during the wintertime before sowing, or even as a side dressing surrounding growing plants.

Because of its rich potash concentration, wood ash is appropriate to be used around many fruit trees, such as berries and mulberries, where it aids in the ripening of the wood, increasing toughness, pest resistance, and yield. In addition, you can incorporate it into every soil that is used to grow fruit plants, particularly tomatoes.

Wood Ashes as a Soil or Composting Alteration: Some Tips

Dan Sullivan, a soil expert with the OSU Extension Service, offers the accompanying guidance:

When using wood ash, take precautions. Use the exact care you have while dealing with home bleach, also a very alkaline substance. Wear safety glasses and gloves. Wearing a dust cover could be necessary based on the granularity of the ash.

Burned waste ash, cardboard, charcoal, or pressure-treated, coated, or pigmented wood should not be used. These compounds include trace components that can be detrimental to many crops if used in large quantities. For instance, boron is present in the sealant of cardboard cartons and trash bags, which is harmful to several vegetation types at levels somewhat greater than those required for proper growth.

Apply ash cautiously on alkaline soils and with acid-loving crops like blueberries or azaleas.

Applying wood ash to a potato crop can promote the growth of potato rot.

Applying ash to freshly seedling growth is not a good idea since it includes just so many salts for germination.

Nitrogen fertilizers such as ammonium sulphate (21-0-0-24S), urea (46-0-0), and ammonium nitrate should not be used with ash (34-0-0). Whenever these fertilizers come into touch with high pH substances like wood ash, they release ammonia gas.

Note: Instead of wood ash, you can also use leaves in your garden as a fertilizer. Don’t throw them, dry leaves added to compost can be gold for your vegetable garden.


On evergreen plantings, perennial bulbs, annuals, and vegetables, ashes are used (except potatoes). Azolla, juniper, conifer, camellias, blueberries, and rhododendrons are acid-loving plants that should not be fertilized with wood ashes.

It is critical to remember that wood ashes are alkaline. If the soil seems to have a pH of 7.5 or higher, you shouldn’t use them. It’s pointless to apply that to acid-loving vegetation.

It isn’t a good idea to use it in potato-growing areas. Potatoes have plenty of potassium, however, alkalinity can help the fungus scab on potatoes.

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