Selaginella lepidophylla

When watering the Flower of Stone, it is recommended to use filtered water at room temperature. Tap water may contain harmful particles, which is why filtered water is better. The Flower of Stone prefers warm environments, so it is important to avoid using cold water as it can shock the plant. Additionally, overhead watering should be avoided to prevent foliage complications. Instead, water the plant by applying filtered room temperature water directly to the soil until it is completely soaked. This helps moisturize the roots and allows them to spread and absorb the necessary nutrients.

Overwatering is a common issue for the health of your Flower of Stone. It causes wilting, yellowing leaves, and may lead to diseases like root rot, mold, and mildew. On the other hand, underwatering is less common but can still occur, resulting in brittle, brown leaves. To care for your Flower of Stone, it's important to notice signs of overwatering early. Reduce watering and use well-draining soil if overwatering is suspected. If underwatering is observed, simply increase watering until signs improve.

If your plant is in a pot, the most precise way to determine if your Flower of Stone needs water is to stick your finger into the soil. If the top two to three inches of soil feel dry, then it is time to water the plant. If you are growing your Flower of Stone outdoors in the ground, you can use a similar method to test the soil. Once again, if the top few inches of soil have become dry, it is time to water the plant. Typically, during the spring and early fall, you will need to water this plant about once a week using this method. However, in extremely hot weather, you may need to increase watering to approximately twice a week or more. It is worth mentioning that mature, well-established Flower of Stone plants have an impressive ability to withstand drought.

To properly water your Flower of Stone, don't be afraid to give it a generous amount of water. Make sure the first two to three inches of soil are dry before watering. It's important to thoroughly soak the soil, allowing excess water to flow out of the drainage holes at the bottom of the pot. If you notice that water is not draining properly, it's a sign that you may have underwatered or that the soil is not draining well. Avoid letting water accumulate inside the soil, as it can harm the plant. If your plant is outside, one inch of rain per week should be enough.

The water needs of the Flower of Stone change depending on its growth stages. In the first few years of its life or when it is just transplanted, it requires more water. During these stages, it focuses on growing new roots, which need extra moisture to support future growth. As it matures, it will require less water. Additionally, during the bloom period, the plant needs more water to support flower development.

The Flower of Stone needs about 3-6 hours of sunlight daily and can benefit from indirect sunlight throughout the day. It's crucial to observe the sunlight's movement in your garden to ensure that plants receive a balanced amount of light and shade, which fosters their health and happiness. Originating from environments with variable light conditions, the Flower of Stone has adapted to different sunlight intensities, but it's important to avoid extremes. Too much sun can cause dehydration, while insufficient sunlight may lead to underdevelopment.

Indoor Flower of Stone plants require adequate lighting for optimal growth, especially in conditions where natural sunlight is insufficient. Artificial lights, like LED lights, can be a vital solution, providing the necessary wavelengths for healthier and faster growth. When using artificial light, consider the intensity needed based on the plant type: 30-50W/sq ft for full sun plants, 20-30W/sq ft for partial sun plants, and 10-20W/sq ft for full shade plants. The light source should be placed 12-36 inches above the plant to mimic natural sunlight, ensuring the plant receives 8-12 hours of light per day to simulate natural daylight hours.

When the Flower of Stone experiences insufficient light, several symptoms may appear, including smaller new leaves, leggy or sparse growth, early leaf drop to conserve resources, halted growth due to poor light conditions, lighter-colored new leaves suggesting a lack of chlorophyll, and chlorosis, leading to yellow leaves. Additionally, excessive sunlight can cause sunscald, leaf curling as a defense mechanism, wilting from loss of water, and leaf scorching, indicating burn damage. These signs highlight the plant's struggle with inappropriate light levels.

To optimize growth, gradually acclimate your Flower of Stone to brighter conditions by shifting it to sunnier spots each week until it receives the desired amount of sunlight. For plants that are large or difficult to move, consider using artificial lights such as desk or ceiling lamps for at least 8 hours daily, or invest in professional grow lights. Outdoor plants should also be moved gradually to prevent sunburn. If parts of the plant have already been damaged by poor light, focus on fostering new, healthy growth. For ground plants, minimize obstructions like overhanging branches and consider transplanting smaller plants to sunnier locations during their dormant periods for better sunlight exposure and improved growth.

The Flower of Stone, scientifically known as Selaginella lepidophylla, originates from environments where temperatures range from 32 to 90 °F (0 to 32 °C). It thrives in moderate climates and exhibits optimal growth within this temperature range. This plant has a strong resistance to cold, making it unnecessary to make special seasonal adjustments for its care in these conditions.

Despite its strong cold resistance, the Flower of Stone requires protection if winter temperatures are expected to drop below -35°C. Protecting the plant can be accomplished by covering it with soil or straw. It's also recommended to water the plant abundantly before the first freeze of autumn to ensure the soil remains moist and freezes in that state. This preparation helps prevent drought and water scarcity for the plant during the winter and early spring months.

The Flower of Stone is cold-tolerant and exhibits the best growth above 0°C. During winter, it should be maintained above -30°C to prevent damage. If temperatures fall below -35°C, you might not notice immediate damage during winter, but there could be a decrease in sprouting or even a lack of sprouting in spring. The recommended solution for any parts that fail to sprout in spring is to remove them.

During the summer, it's critical to keep the Flower of Stone's temperature below 32°C to prevent heat damage. If temperatures exceed 35°C, the plant's leaves may lighten in color, curl, become prone to sunburn, or in severe cases, the entire plant may wilt and dry out. Solutions include trimming away sunburnt and dried parts, moving the plant to a shaded location or using a shade cloth to protect it from the midday and afternoon sun, and watering the plant in the morning and evening to maintain soil moisture.

The main structure of the Flower of Stone is made up of its leaves. Fertilization is crucial for ensuring that these leaves not only look great but also fulfill their function effectively. Proper fertilization ensures that the leaves maintain a consistent color and a healthy texture. Additionally, fertilization has benefits below the surface of the soil. It helps the Flower of Stone develop new roots and maintain existing ones in its root system. This not only promotes current plant health but also enhances the plant's ability to absorb nutrients from the soil in the future.

If you grow your Flower of Stone outdoors, it will send out new growth in early spring. This is a signal to start fertilizing. Usually, one application of fertilizer is enough. But if you want to promote even more growth, you can fertilize multiple times in the spring and summer. In this case, feed your Flower of Stone every month to a month and a half.

During the late fall and winter, your Flower of Stone goes into a dormant phase, stopping new growth. To maintain it during this time, avoid fertilizing. In the spring and summer, if you do choose to fertilize, start reducing the amount as summer approaches because the Flower of Stone's growth rate slows down. It's generally not a good idea to fertilize during unusually hot weather or extremely dry soil as this can stress and harm the Flower of Stone, potentially causing it to die prematurely.

Fortunately, choosing the best fertilizer for a Flower of Stone is straightforward. These plants thrive on a general-purpose garden fertilizer with equal amounts of nitrogen, phosphorus, and potassium. A fertilizer with a ratio of 10-10-10 or something similar will be effective. Avoid fertilizers with high nitrogen levels if unsure. Most of the best fertilizer for a Flower of Stone comes in granular form. These fertilizers should be slow-release and easy to apply to the soil. Additionally, feeding your Flower of Stone with an organic soil amendment like compost can be helpful.

To ensure your Flower of Stone gets the best nutrition, wait until its first leaves appear in early spring. Then, use a granular slow-release fertilizer with a balanced formula on the soil around the plant's base. You can do this again later in the season if desired. Remember to apply the fertilizer to the soil, not the plant itself, which may involve moving some leaves to access the roots. It's also a good idea to water the plant before and after fertilizing.