Repot a christmas cactus

Christmas Cactus is a jungle cactus that prefers humidity and moisture, unlike its standard cactus cousins, which require a warm, arid climate. A winter-bloomer, Christmas Cactus displays flowers in shades of red, lavender, rose, purple, white, peach, cream and orange, depending on the variety. These prolific growers eventually need to be repotted. Repotting Christmas Cactus isn’t complicated, but the key is knowing when and how to repot a Christmas Cactus.

When to Repot

Most plants are best repotted when they display new growth in spring, but Christmas Cactus repotting should be done after blooming ends and the flowers have wilted in late winter or early spring. Never attempt to repot the plant while it is actively blooming.

Don’t rush to repot Christmas Cactus because this hardy succulent is happiest when its roots are slightly crowded. Frequent repotting can damage the plant.

Repotting Christmas Cactus every 3 to 4 years is usually adequate, but you may prefer to wait until the plant begins to look tired or you notice a few roots growing through the drainage hole. Often, a plant can bloom happily in the same pot for years.

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How to Repot

Here are some Christmas Cactus potting tips that will help you find success:

  • Take your time because repotting a Christmas Cactus can be tricky. A lightweight, well-drained potting mixture is critical, so look for a commercial mix for bromeliads or succulents. You can also use a mixture of two-thirds regular potting soil and one-third sand.
  • Repot Christmas Cactus into a pot only slightly larger than the current container. Be sure the container has a drainage hole in the bottom. Although Christmas Cactus likes moisture, it will soon rot if the roots are deprived of air.
  • Remove the plant from its pot, along with the surrounding soil ball, and then gently loosen the roots. If the potting mix is compacted, gently wash it away from the roots with a little water.
  • Replant the Christmas cactus in the new pot so the top of the root ball is about an inch (2.5 cm) below the rim of the pot. Fill in around the roots with fresh potting mix and pat the soil lightly to remove air pockets. Water it moderately.
  • Put the plant in a shady location for two or three days, then resume the plant’s normal care routine.



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There are three main types of soil: sand, silt, and clay. The best soil for most plants to ensure optimum growth is a rich, sandy loam. This soil is an even mixture of all three main types of soil. In most cases, you’ll need to amend the soil with compost. Depending on how compact the soil is, you may need to add peat moss and sand. However, there are many plants that are well adapted and can grow in particular types of soil.

Different Plants for Different Soils

Soil is generally described by the amount of sand, clay, and silt it contains. This is known as texture. Soil texture is directly related to nutrient quality and drainage capabilities.

Loam Soil

A loam soil contains a nice balance of silt, sand, and clay along with humus. The factors that make this soil type so desirable and good for growing plants include:

  • Higher pH level: The best pH for most plants is between 6.0 and 7.0. The pH level affects the plant’s ability to grow. This range of acidity allows good plant nutrients to thrive as well as other soil organisms, such as earthworms.
  • Higher calcium level: Plants need calcium for healthy growth. Calcium helps maintain the balance of soil chemicals. It also ensures that water reaches the roots of plants by improving the soil’s ability to retain water. It also contributes to creating the looseness of the soil, so oxygen reaches the roots. Calcium reduces the amount of salt in the soil. Too much salt damages the root systems and limits the plant’s growth and ability to absorb nutrients.
  • Gritty texture: The soil is dry, soft but gritty to the touch, and crumbles easily to provide excellent draining properties. The soil texture also retains water and plant nutrients. This benefits the plants with consistent moisture and food. Since the soil is crumbly, the air flows easily all the way to the roots.

Sandy Soil

Sand is the largest particle in soil and does not hold nutrients well. The following plants are well-adapted to sandy soil.

  • Blanket Flower: Drought tolerant, this flower thrives in nearly pH neutral soil found in sandy soil.
  • Adam’s Needle: This yucca plant prefers sandy soil and tolerates salt spray. Its roots rot in damp soils.
  • Wormwood: This perennial herb is drought-tolerant and prefers dry sandy soils that aren’t very fertile.
  • Butterfly weed: Attract butterflies with this sun-loving plant that prefers poor, dry sandy soil.

Clay Soil

Soils with a large amount of clay are heavy and do not drain well. The following plants are well-adapted to clay soil.

  • Bee Balm: Some species grow in sandy soils, while others prefer loamy or clay soils. Check before buying which soil the plant prefers.
  • Black-eyed Susan: This flower can grow in a range of soils from loamy to clay. It needs good soil drainage, so you may need to amend your flower bed.
  • Goldenrod: This wildflower is adaptable to most soil types, including clay.

Silt Soil

Silty soil is powdery with high fertility. Unfortunately, soils that are high in silt can become waterlogged very easily. The following plants are well-adapted to silty soil.

  • Swamp milkweed: This plant thrives in wet soils.
  • Yellow iris: This is an adaptable plant. It’s great for landscaping around a garden pond or stream.
  • Japanese iris: This flower loves water, so plant it around a garden water feature or other wet area.

Best Soil for Flowers

The best soil to use for flowers depends on the type of flower, such as bulb vs seed, and where you’re growing it. For example, flower bulbs will thrive in sandy loam soil.

  • Sandy loam soil provides excellent drainage to prevent the bulb from rotting and the roots can grow easily.
  • The texture of potting soil is best when planting flowers in a container, such as a window box or flower pot.
  • For a flower garden, you can use a soil mixture of compost, peat, and topsoil as a general mix with a 1:1:1 ratio.

Best Soil for Vegetables

The best soil for a vegetable garden depends on the type of garden you have. For a raised bed garden you want a 50/50 ratio of compost and topsoil. For a field garden you need soil that drains well. Clay soil will need to be amended to ensure the water drains properly. You can amend using gypsum, vermiculite or expanded shale.

Soil for Indoor Plants

If you’re growing houseplants, you might think it’s a good idea to scoop some soil from your yard to grow your plants in. This is actually a bad idea since garden soil contains bacteria that can be harmful to your houseplants. There are a two options if you don’t want to use commercial potting soil.

Sterilize the Outside Soil

If you opt for your outdoor soil to grow your indoor plants, you’ll first need to pasteurize it in order to eliminate any diseases, as well as insects and weeds. Spread it on a cookie sheet and bake in a 180 degree oven for 30 minutes. Although this process will emit a bad odor, it does take care of the bacteria.

After the soil is sterilized, you’ll likely need to amend it with peat moss and sand. These are things that will allow proper drainage and air flow while still retaining the right amount of moisture. Commercial potting soils are similar. They include peat moss and vermiculite along with a slow-release fertilizer. Together these things create a soil mix that holds nutrients, retains moisture, and provides ventilation for the roots of the plant.

Create Your Own Mix

Another option is to make your own potting soil. This will allow you to control the quality of the soil. A recipe for a lightweight soilless planting medium includes:

  • 1/2 cubic yard peat moss
  • 1/2 cubic yard perlite
  • 10 pounds bone meal
  • 5 pounds blood meal
  • 5 pounds limestone

Mix all ingredients thoroughly and store in an airtight container until needed.

Science Fair Project on Best Soil for Plant Growth

You can use different soils in your science project to test which is best for plant growth. Use peat pots or other containers and fill with different soils, such as sand, silt, and clay. Make soil combinations, such as sand and clay, silt and clay and silt, sand, and clay. You may decide to create additional soils using different ratios of various combinations.

Label Pots

Label each pot clearly so you know which soil is in each vessel. Make a not in your journal. If you choose to use a numeric or alphabet coding, make sure you transfer the information accurate in your journal.

Choose Type of Seed

You want to use the same seeds for each soil type. Select the seed according to the type of plant you wish to grow. Flower plants are a popular choice as are herbs.

  1. Make sure you plant each seed at the same depth.
  2. Plant two seeds per container in case one seed is defective and doesn’t germinate. You can remove the less healthy plant once the second set of leaves appear.
  3. Plant, water and expose to sun according to the seed packet.

Document Your Experiment

Keep a daily journal on each plant. Make notations on the slightest changes or reactions to the plant growth. You want to observe all differences in the plants as they grow.

How to Measure Your Progress

Your science project needs data to back up your research. There are specific things you can measure to access which soil is best.

  1. You want to measure the height and width of your plants, daily.
  2. Document when each leaf unfolds.
  3. Measure how each plant grows and compare to the others.
  4. How many flowers does each plant produce?
  5. Are the number of seeds the same?
  6. Make sure to take photos or videos of the progress.

Results of Your Experiment

Depending on the requirements for your science project, you need to compile and analysis your journal data and draw a conclusion about which soil type performed the best, based on growth, health, number of leaves, flowers and seeds.

Basil Plant Expermiment Example

This video documents different soils for growing basil plants.

Water Retention, Soil, and Plant Growth Experiment Example

This video shows a project that examined the water retention properties of different soil and how it affects plant growth.

Beautiful Garden

Whether a container garden inside or a garden outside, the key to successful planting is the soil requirements of particular plants. Most soils are a combination of sand, clay, and silt. If you don’t know the type of soil, you can use an inexpensive soil testing kit to find out.

What’s The Best Type of Soil For Plants?

Four things are required for plants to grow big and hardy: the proper amount of sunlight, the availability of water, enough nutrients, and oxygen. Without these four things, plants will struggle and in some cases, die. Out of those four growth factors, soil has an influence on three of them: water, nutrients, and oxygen. Soil is the place that plants live 24/7. It’s where they take root, weather the seasons, and absorb water and nutrients. To say that having the best soil for plants is important is an understatement. So, what is the best type of soil for plants?

Most homeowners assume water and sunlight are the only two factors that matter when trying to grow plants. Little thought is given to the soil type because dirt is dirt, right? Wrong. Soil varies greatly in composition, density, and structure. These differences can alter drainage, compaction, nutrient levels and what types of organisms live and grow in the soil.

* What to Consider Before Planting? *

There are three main types of soil: sand, clay, and silt. These soil types are characterized by their size, but can be identified by their moisture retention, texture, and flexibility. Each type is uniquely different in how they support the three growth factors or water, nutrients, and oxygen.


Sand particles are large with lots of space between each grain. Water and nutrients flow through easily but aren’t retained. Sandy soil doesn’t bind together well. Think of a beach or desert, very few plants grow there and the soil is susceptible to erosion. Because of these traits, sand is good for oxygen infiltration.


Clay particles are very small and close together. Clay is dense and sticky. It holds water very well but it’s also very dense. When clay dries out, it becomes hard and difficult to till. Many plants struggle in clay because of its poor drainage and dense nature that make it difficult for roots to break through the soil.


Silt particles are larger than clay but smaller than sand. It is often found suspended in water or deposited by streams. Silt is like clay in that it retains moisture but doesn’t allow much oxygen flow. Silt deposits can be very fertile and support lots of plant growth like the wetlands around the Mississippi River or rich farming near the Nile River in Egypt.

Best Soil For Plants:

The ideal blend of soil for plant growth is called loam. Often referred to as topsoil or black dirt by landscape companies, loam is a mixture of sand, clay, and silt. The estimated mixture is 40% sand – 40% silt – 20% clay. Loam is just the right mixture of all three that it holds nutrients well, retains water but still drains properly and allows oxygen to infiltrate.

Now most people don’t get to choose what type of soil their yard sits on, but they can amend it if necessary. Many homeowners complain of dense clay soil that is difficult to work with or very dry soil that has been stripped of nutrients. A layer of topsoil can be brought in for new construction homes if this is the case. How Black Dirt is Made. For existing yards, there are steps to take to remediate the soil by tilling in other soil types to get closer to the loam mixture. To see what soil type is underneath your residential landscape, try this soil survey by United States Department of Agriculture.

10 Types of Soil and When to Use Each

No matter how green your thumb is, you’re likely to have trouble growing plants if you don’t have the right conditions. One of the biggest culprits behind plants that fail to grow is the type of soil being used. The wrong soil can wreak havoc on plants and may prevent them from getting the moisture, nutrients and sunlight they need to thrive. What makes gardening difficult is that there are so many different types of soil to choose from, and it can be hard to know which will work best with certain plants.

Before you choose soil for your garden, it can help to understand how different types are identified. Classification is often based on the texture and size of the particles that make up the soil, as well as on the mineral and nutrient content of each type. While the majority of soils are made up of clay, silt and sand, the ratio of these materials can greatly impact the properties of the soil, as well as its ability to support plant life. Soils can also be identified based on their level of acidity, which is measured on a scale from 1 to 14, known as the pH scale. Lower numbers on this scale are linked to higher levels of acidity, while higher numbers mean the soil is more alkaline. Though most plants thrive when acidity measures between 6.2 and 7.2, most types of soil have an average pH of 5 .


Of course, the type of soil in your yard is also determined by factors such as rainfall and organic material content. By adjusting things like moisture retention, pH and mineral distribution, you can transform your existing soil to create a more hospitable environment for the type of plants you want to grow.

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