5 Signs Your Landscape Design Didn't Account for Plant Growth

When designing a landscape, many owners focus on the current appearance of seedlings, forgetting that plants are living organisms that constantly change and grow. Ignoring this factor leads to numerous problems: from overcrowding and lack of light to difficulties with maintenance and loss of aesthetics. Here are five key signs that indicate such a planning error.

1. Overly Dense Plantings

This is one of the most common mistakes. When you see young seedlings, it seems like there's plenty of space. However, within 2–3 years, shrubs planted 50–70 cm apart will turn into impenetrable thickets. Trees planted closer than 3–5 meters from buildings can damage foundations with their roots or block first-floor windows within 5–7 years. For example, mature spruces or pines can reach 10–20 meters in height and 3–5 meters in crown diameter, which is significantly larger than anticipated when planting a small sapling.

Practical Tip: Always consider the mature size of plants. Use information on maximum width and height provided in catalogs or on packaging, and allow sufficient distances between them and from structures. FormSpace can help you visualize the future sizes of plants on your property during planning.

2. Plant Size Mismatch for the Allotted Space

This sign is closely related to the previous one but focuses on the selection of specific species. For example, planting a fast-growing Thuja Brabant, which reaches 15–20 meters in height and 3–4 meters in width at maturity, directly next to a narrow path on a small 6–8 are plot. Or choosing tall conifers for a hedge along a fence, where they will eventually block light for neighbors or create excessive shade on your property. Such plants require regular formative pruning, which can be laborious and costly.

Practical Tip: Before purchasing, study the characteristics of the chosen plant. For small plots, it's preferable to select compact varieties of trees and shrubs, columnar or dwarf forms, which will not require radical pruning to maintain their size.

3. Ignoring Changes in Lighting with Growth

Many plants have strict lighting requirements. A young sapling might thrive in the sun, but if another tree grows nearby or a new structure is planned that will eventually cast a shadow, the growing conditions can change dramatically. For example, on a 10–15 are plot where sun-loving flowers are planted in one corner, and a large deciduous tree grows nearby a few years later, the flowers may begin to wither due to lack of light. This is especially critical for fruit trees and shrubs, which need plenty of sun for a good harvest.

Practical Tip: When planning, consider not only the current but also the future shade patterns of your plot. Think about how trees and shrubs will grow and how this will affect adjacent areas and plants. Place sun-loving plants in open areas and shade-tolerant ones where more shade is anticipated.

4. Lack of a 'Skeleton' of Mature Plants and Excessive Use of Annuals

A design that looks beautiful in the first year but loses its structure and appeal after a few years was likely developed without considering the long-term perspective. If the majority of plantings consist of annual flowers or fast-growing but short-lived shrubs, without a well-thought-out foundation of trees and large perennial shrubs, the plot will constantly require complete replanting or significant changes. This often leads to a feeling of incompleteness and the need for continuous capital investment in updates.

Practical Tip: Create a strong landscape foundation with long-lived trees and shrubs that will serve as the 'skeleton' of the garden. These plants will define the structure and volume of the plot for many years. Use perennials and annuals to fill space and create seasonal accents. You can read more about zoning in our article “Effective Plot Zoning: How to Create Functional Space”.

5. Access Issues for Plant Maintenance

If plants are planted so densely that it's impossible to walk between them with garden tools, or if they block access to utilities, maintaining the plot will become a torment. For example, if shrubs or trees have grown so large that they block a gate, impede passage along a path, or obstruct access to an electrical panel, it's not only inconvenient but can also be unsafe. Regular pruning, watering, weeding — all these tasks become almost impossible without sufficient space.

Practical Tip: When planning, always leave enough space for passage and plant maintenance. Consider the width of a mature plant when calculating distances from paths, fences, and structures. Also, think about access to hidden utilities. This will allow you to easily maintain the order and health of your garden.

FAQ

How do I find out a plant's mature size?

Information on a plant's maximum height and width at maturity is usually indicated on seedling tags, in nursery catalogs, or in specialized gardening guides. Always look for data specific to your climate zone.

What is the minimum distance a tree should be planted from a house?

For large trees, it's recommended to plant them no closer than 3–5 meters from the house foundation to avoid root damage and excessive shading. For shrubs, 0.5–1.5 meters is sufficient, depending on their size.

What if plants are already planted too close?

If the plants are still young, they can be transplanted to a more suitable location. For mature plants, you sometimes have to choose: either prune them regularly and heavily, which can harm the plant, or remove and replace them with a more suitable species, or live with the inconveniences.

Can FormSpace be used to account for plant growth?

Yes, with FormSpace, you can place various plant species on your plot plan and see their approximate mature dimensions, which helps avoid mistakes with dense planting and size mismatches. This allows you to foresee how your garden will look in a few years.

Which plants are best for a small plot?

For small plots, compact varieties of trees and shrubs, columnar or dwarf forms, and perennials that don't require much space or complex care are ideal. Vertical gardening can also be considered.

Conclusion

Considering the future growth of plants is one of the key aspects of successful landscape design. Planning with foresight will help avoid many problems in the future, save you time and money, and allow you to create a harmonious and functional garden that will delight you for years to come. If you're unsure of your abilities, try using landscape planning tools like FormSpace to visualize your plot, taking into account all the nuances of plant growth.