How To Fertilize Dahlias In 3 Easy Steps - Krostrade

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How To Fertilize Dahlias In 3 Easy Steps

Learning how to fertilize dahlias is easy, and one can break it down into three easy steps. They include knowing the best fertilizer, when to fertilize, and how to fertilize dahlias correctly. You don’t have to feel overwhelmed with the information about fertilizing these flowers because they are generally easy to grow anyway. 

However, like all plants, knowing the fertilizer needs and practices for dahlias is crucial to their growth and survival. You can also consider cultivating them or starting them in the greenhouse to maintain their ideal growing conditions. This way, you don’t have to worry about fluctuating weather and temperatures that can affect their growth rate and health. 

How To Fertilize Dahlias In 3 Easy Steps

How To Fertilize Dahlias Correctly

More often than not, the most crucial factor to remember when fertilizing dahlias is the soil itself. It’s also worth noting that the plants do not require fertilizer when you have just started them because they have no feeder roots to make use of the fertilizer yet. And if you’re just establishing dahlias, whether outdoors or in the greenhouse, moist soil and mulching are enough, and adding water is unnecessary since overwatering can cause rot. 


Know the best fertilizer

According to the American Dahlia Society, the best way to determine your dahlias’ appropriate fertilizer is by checking your soil. This is perhaps one reason why growth in the greenhouse puts you at an advantage since you can modify the dahlias environment. After you checked the soil’s pH and composition, you can then decide on the fertilizer to use. 

Dahlias can use high nitrogen fertilizer throughout the season but remember to minimize the nitrogen at the end of the season. Nitrogen will encourage bush growth and large flowers, but you have to control its amount since too much can lead to poor growth and low-quality tubers. Instead, potassium is more vital in helping create vigorous dahlias while also developing their roots faster. 

Oregon State University also recommends 5 pounds of a 0-20-20 fertilizer per 100 square feet for dahlias. Emphasis is necessary for monitoring the nitrogen and focusing on potassium and phosphorus. If you’re new to planting, you’ll find formulas where the first number is lower than the last. 


When to fertilize

The University of Vermont Extension mentioned adding manure or compost in the soil before planting. Then you can add a quarter pound of a balanced fertilizer per 10 square feet after a month. The reason why you’ll benefit from fertilizing dahlias 30 days after planting is that it encourages the tubers to produce sprouts and stems. 

You can also fertilize after the plants sprout, then every four weeks from the middle of the summer until the beginning of autumn. This way, dahlias can enhance their root system and have enough energy to enhance flower production. Dahlias are heavy feeders, and following these schedules should give them their requirements to grow well. 


How to fertilize

First, you want to know how much fertilizer you’ll give to your dahlias. Fertilizers often show their recommended amounts per square foot, so check it first to avoid over- or under-feeding. But in general, you can have half a cup of fertilizer around your plants to create a 2-foot ring that you’ll work into the soil. 

This is best when you’re just starting, and then water it up to help with absorption and also prevent burning the roots. While dahlias are heavy feeders, it can be confusing as some gardeners swear that they don’t even need fertilizing. Therefore, checking your soil beforehand should give you the gist of your plant’s needs for feeding. 

Another tip that you have probably read for fertilizing dahlias is treating it similarly to a tomato plant. This means dahlias will work well with an all-purpose fertilizer when you plant them and then switching to a low nitrogen liquid fertilizer once a month when they start blooming. If this is the practice you chose, remember to stop fertilizing early in September if you want to use tubers later. 

Additionally, you can promote better aerial growth if you fertilize with a high-phosphorus feed in the early summer every three weeks. You can then stop feeding when dahlias die back in late summer as the plants will soon be undergoing dormancy in winter. You want to discourage dahlias from producing foliage by the end of the season so that they have enough nutrition in their tubers. 



You can ensure flowering plants like dahlias grow and bloom healthily regardless of your location by using a greenhouse. However, a significant part of their success is on you, including knowing how to fertilize dahlias properly. Start by identifying the best fertilizer, when it is the right time to fertilize, and how to fertilize dahlias. 

One gardener might say dahlias are heavy feeders, while another can swear that they are low maintenance when it comes to feeding. With the many tips for fertilizing dahlias from various gardeners, the concepts can be contradicting. To avoid getting overwhelmed, remember that your soil is the first factor to consider and that until there are no feeder roots that have developed yet, fertilizing has no use. 

Therefore, check your soil quality to adjust the feeding accordingly. You can also treat dahlias the same way you’ll fertilize tomato plants and start from there. 


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How To Grow Mexican Heather. 3 Steps To Success

How To Grow Mexican Heather. 3 Steps To Success

You only need to overcome three steps to know how to grow Mexican heather. This compact perennial is unique not just because of its looks but also with how easy it thrives amidst hot conditions. However, do note that Mexican heather plants don’t do as well in cold regions. 

Before you give them up, you may also find it comfortable to grow Mexican heather in the greenhouse. Remember that the stable indoor conditions in the greenhouse make it ideal for starting plants. However, it can also offer protection to plants that don’t tolerate extreme climates. 


How To Plant Mexican Heather


Step #1. Planning and preparation



The first step in growing Mexican heather is planning and preparing to guarantee success. You want to check your calendar on when is the best time to plant Mexican heather. If your climate is similar to the Mediterranean regions, you can easily plant Mexican heather at any time

However, it’s generally ideal for growing this plant late in fall, so it has established itself before the temperatures get challenging. And as you can assume, you will need to grow Mexican heather in the greenhouse if your area has harsh winters. Starting Mexican heather from seeds indoors will guarantee flowers in the summer.



After determining when to plant Mexican heather, you must prepare the site for your plants. Remember that the location is crucial to guarantee the steady growth of any plant. Therefore, you may benefit from starting Mexican heather indoors if your climate is fluctuating. 

In general, you want somewhere with fertile and well-draining soil. Test your soil to do the necessary amendments and improve its structure. The plant also does best with some shade because the full sun affects the foliage’s health. 


Step #2. Planting

After you started Mexican heather in the greenhouse, gently take the plant from the pot. Make sure to untangle and loosen the roots before setting the plant in the center of the hole. Allocate a space of three feet between each plant, and the top of the root ball should be half an inch above the ground. 


Step #3. Maintenance

Maintaining the newly planted Mexican heather plants is no different from other plants. You want to keep soil moisture to help the plants establish themselves. However, be sure not to create a wet environment that can decay the plant. 

Adjust your watering practices according to the weather. Mature Mexican heather plants will tolerate challenging conditions like drought and summer heat. However, it’s best to provide two to six hours of partial shade instead. 



How To Propagate Mexican Heather



You can grow Mexican heather from seeds similarly to other flowering plants. Use pots with standard potting mix for sowing, and then add some soil over the seeds. Maintain soil moisture, and you can place the pots in the greenhouse to protect the seedlings from the environment. 



You can also root cuttings from a healthy Mexican heather plant. Take a four-inch stem section, remove its lower leaves, dip the end in rooting hormone, and then plant in a pot with soil. Continue watering until root establishment for transplanting. 



Division is an excellent way to grow Mexican heather and also keep the plants from overcrowding an area. Gently loosen the soil around a plant to make lifting easier and divide the root ball into sections using a sharp and sterile knife. Depending on its size, you can get up to four divisions for transplanting in containers or onto the garden. 


Caring For Mexican Heather


Water and fertilizer

While Mexican heather can tolerate dry conditions, it would still be optimal to keep them well-hydrated. You can water the plants deeply once per week, but ensure that you’re using a well-draining medium and container. Then, wait for the ground to dry in between waterings to avoid creating standing water. 

Remember to adjust the frequency and amount of water you give to the plants. More so, container Mexican heather plants would dry faster, so water them often. You can also mulch every spring to maintain soil moisture and even smother weeds. 

Do you fertilize Mexican heather? Mexican heather is relatively low-maintenance and not meticulous when it comes to nutrients. However, you can still boost and maintain your plant by fertilizing in spring, summer, and fall with a balanced feed. 



Pruning is not a requirement for Mexican heather. However, you can maintain the size and shape of your plant by trimming lightly every spring. You can also use this practice to remove the unhealthy parts. 


Common problems

As one can expect, Mexican heather plants are not that prone to many diseases and pests. However, you still want to maintain proper cleanliness and diligence to prevent infestation and diseases. It would also be best to maintain a stable environment such as a greenhouse to discourage spider mites or fungal infections. 



You can add another colorful perennial to your garden in three simple steps. Those who know how to grow Mexican heather can quickly tell you that this plant is the easiest to grow. However, remember to plan your planting date and site to ensure that the conditions will support the plant’s development. 

You can start indoors and then plant Mexican heather somewhere with partial shade and fertile, well-draining soil. Ensure soil moisture but never overwater the soil. Once established, you shouldn’t have any issues in growing Mexican heather. 

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