What Does It Mean When We Say "II"...

Basic Terms in Plant Growing: What Every Proper Gardener Must Know

Growing plants successfully requires understanding fundamental concepts and terminology. Whether you're cultivating vegetables, herbs, or ornamental plants, mastering these basic terms will help you make informed decisions and achieve better results in your garden.

Essential Growing Terminology

Every experienced gardener knows that proper plant care begins with understanding the basics. Let's explore the key terms and concepts that form the foundation of successful cultivation.

Photosynthesis

The most fundamental process in plant life. Photosynthesis is how plants convert light energy into chemical energy, using carbon dioxide and water to produce glucose and oxygen. Understanding this process helps you optimize lighting conditions for your plants.

pH Level

pH level measures the acidity or alkalinity of your growing medium on a scale from 0 to 14. Most plants thrive in slightly acidic to neutral soil (pH 6.0-7.0). Testing and adjusting pH is crucial for nutrient availability and plant health.

Nutrients - NPK

The three primary macronutrients every plant needs:

Nitrogen (N) - promotes leafy growth and green color
Phosphorus (P) - supports root development and flowering
Potassium (K) - strengthens overall plant health and disease resistance

Propagation

Propagation refers to creating new plants from existing ones. Common methods include:

Seeds
Cuttings
Division
Layering

Growing Medium

The substrate or material in which plants grow. This can be traditional soil, coco coir, perlite, or hydroponic solutions. Each medium has different properties affecting water retention, aeration, and nutrient delivery.

Photoperiod

Photoperiod is the duration of light exposure plants receive daily. Many plants are photoperiod-sensitive, meaning their growth stages depend on day length. Understanding this helps you control vegetative growth and flowering.

Transpiration

The process by which plants release water vapor through their leaves. Transpiration helps regulate temperature and facilitates nutrient uptake from roots.

Hardening Off

Hardening off is the gradual process of acclimating indoor-grown plants to outdoor conditions. This prevents shock from sudden changes in temperature, humidity, and light intensity.

Environmental Factors

Temperature

Each plant species has an optimal temperature range for growth. Most plants prefer daytime temperatures between 20-28°C and slightly cooler nights.

Humidity

Relative humidity affects transpiration, nutrient uptake, and disease susceptibility. Most plants thrive with 50-70% humidity, though requirements vary by species.

Ventilation

Proper air circulation prevents disease, strengthens stems, and ensures adequate CO2 supply for photosynthesis.

Growth Stages

Germination

The process where seeds sprout and begin growing. Germination requires proper moisture, temperature, and sometimes light to trigger.

Vegetative Stage

The vegetative phase is when plants focus on developing leaves, stems, and roots. This stage requires adequate nitrogen and longer light periods.

Flowering Stage

During the flowering phase, plants redirect energy to producing flowers and fruits. This typically requires increased phosphorus and potassium, and often a change in photoperiod.

Common Growing Techniques

Pruning

Pruning involves selectively removing parts of plants to improve shape, increase yield, or promote health. Techniques include topping, FIMing, and defoliation.

Training

Plant training methods like Low Stress Training (LST) and Screen of Green (ScrOG) help maximize light exposure and optimize space usage.

Mulching

Applying a protective layer of material on soil surface. Mulch conserves moisture, regulates temperature, and suppresses weeds.

Plant Health Indicators

Nutrient Deficiencies

Recognizing deficiency symptoms helps you address problems quickly:

Yellow leaves may indicate nitrogen deficiency
Purple stems might suggest phosphorus shortage
Brown leaf edges can signal potassium deficiency

Pest and Disease Management

Understanding common pests and diseases enables preventive care and early intervention. Integrated Pest Management (IPM) combines prevention, monitoring, and targeted treatment.

Conclusion

Mastering these fundamental terms and concepts creates a solid foundation for successful plant cultivation. Whether you're growing vegetables, herbs, or ornamental plants, this knowledge helps you understand plant needs, troubleshoot problems, and optimize your growing environment for maximum results.

Remember that gardening is both science and art - theoretical knowledge combined with practical experience leads to the best outcomes. Start with these basics, observe your plants carefully, and continue learning as you grow.

What Does It Mean When We Say II....

Continuation...of the enumeration and clarification of gardening terms and other more or less known names. We're starting from P. If you'd like to read the terms alphabetically upwards from A - click HERE as well.

Buds - these are modified leaves covered by scales. Buds are divided into leaf buds and mixed buds. Leaf buds contain only leaves. Mixed buds contain both leaves and flowers.

Peat - is formed by anaerobic decomposition of organic matter. That is, parts of plants that sink below water after dying. Peat is used to improve soil quality. Peat is extracted in peat bogs. It belongs among valuable non-living resources. Peat is low in nutrients and causes acidic soil reaction.

Vine shoots - these are woody shoots of grapevines. If the shoot grows from an old trunk, we call it sterile. If it grows on two-year-old wood, it's a fruitful vine shoot. Vine shoots consist of bark, nodes, eyes, segments and tendrils. Eyes are embryos of future shoots.

Grafting - this is budding. Through budding, we transfer onto the rootstock a part of an annual shoot (the so-called graft) with several buds.

Loose bed - this is a bed arranged so that the base of the bed consists of low flowering plants. They can also be low ornamental plants grown for foliage. And the rest of the bed consists of sparsely planted taller plants. So it's a mixture of lower and taller plants.

Forcing - this is stimulating plants to grow during a period when they are normally dormant.

Planting stock - simply put, we designate as planting stock a) young plantlets grown from seeds and b) parts of plants by which plants reproduce asexually - such as tubers, rhizomes, offshoots, bulbs, cuttings, and others.

Spacing - is the planting distance between individual seedlings. And not only between seedlings, but also between individual rows and within the row. Spacing can be in a triangle or square pattern. Triangle or square spacing. If we plant more than one plant in one spot, it's called cluster planting.

Heart - is either a) the center of head lettuce or b) a collection of young undeveloped leaves in strawberries.

Evergreen broadleaves - the show-offs in our gardens all year round. These include, for example: boxwood, rhododendron, heather, heaths, ivy, cotoneaster. Evergreen broadleaves don't need any special care. Water them thoroughly in autumn. They grow continuously, they don't have winter dormancy.

Trace elements - trace elements include iron, manganese, boron, zinc, copper and molybdenum. Plants always need trace elements in tiny amounts. It's impossible to estimate the dosage or content in soil. Never add trace elements in concentrate form, as you could poison your plants.

Runners - new plants form on strawberry runners. Here, runners are very important.

Perennials - these are flowers that grow in one location for several years after planting. Each year after the end of the growing season, the above-ground parts die off. The underground parts survive. Perennials are rewarding plants. Flower beds look consistently good for several years and are a garden ornament. Popular perennials include sweet alyssum (lat. Alyssum), columbine (Aquilegia), peony (Paeonia), chrysanthemum (Chrysanthemum), primrose (Primula), coneflower (Rudbeckia), aster (Aster), periwinkle (Vinca), delphinium (Delphinium) and others. Rock garden plants are of course among the rewarding perennials.

Water shoots - these are vigorously growing shoots, usually from old wood. Water shoots typically form on one side of over-fertilized or aging trees.

Seed rate - this is a term for the amount of seed needed to sow a specific, precisely defined area.

Seed bed - this is a bed for growing seedlings. It should consist of humus-rich soil with nutrients. Before sowing, loosen the soil and possibly lighten it with river sand. The bed should be located in the sun, protected from wind. It's also advisable if it's protected from surface water. TIP: equip the seed bed with side panels so you can more easily cover and shade it.

Pinching - this is partial shortening of lateral shoots during the plant growing season. We perform pinching after the fourth or fifth leaf (shoots 20-25 cm long).

Nutrients - are soluble in soil water. Plants draw these types of nutrients from the soil - available, bound and firmly bound. Available nutrients - plants release from the soil with substances secreted by roots. They immediately absorb them from the soil. Bound nutrients - these are released only after complete decomposition of organic matter. Firmly bound nutrients - these are not available to plants, they are released only after rock weathering. Nutrients that plants absorb, we return to the soil with organic or commercial fertilizers.

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Author: Hana Michalíková