Ask a Master Gardener : March planting tips for your Peninsula garden

Understanding Shade Types

Shade can be broadly categorized into three types: full, partial, and dappled. Each type of shade has its own unique characteristics and challenges.

Full Shade

Full shade is the most challenging type of shade to work with. It is characterized by a lack of direct sunlight, with only filtered or indirect light reaching the area. In full shade, plants often struggle to photosynthesize, making it difficult for them to grow and thrive. Key characteristics of full shade: + Lack of direct sunlight + Filtered or indirect light + Limited plant growth + Often requires more frequent watering

Partial Shade

Partial shade is a more manageable type of shade, with some direct sunlight filtering through the trees or other obstructions. This type of shade is ideal for a wide range of plants, including flowers, shrubs, and trees. Key characteristics of partial shade: + Some direct sunlight + Filtered or dappled light + Suitable for a variety of plants + May require less frequent watering

Dappled Shade

Dappled shade is a type of shade that is characterized by a mix of sun and shade, with sunlight filtering through the leaves of trees or other obstructions. This type of shade is ideal for plants that require a balance of sun and shade.

Understanding the Timing of Seed Starting

When it comes to starting seeds indoors, timing is crucial. If you start seeds too early, they may not have enough time to develop properly before being transplanted outside. This can lead to weak and leggy plants that struggle to thrive in the outdoor environment.

Why Timing Matters

  • Seeds have different growth rates and requirements. Some seeds, like tomatoes and peppers, take longer to mature than others, like lettuce and herbs.

    The Challenges of Growing Carrots

    Growing carrots can be a challenging task, especially for gardeners with heavy clay soil. The main issue is that carrots are sensitive to moisture, and heavy clay soil can retain too much water, leading to rot and other problems. To overcome this challenge, gardeners need to take extra precautions to ensure their carrots are growing in the right conditions.

    Preparing the Soil

    Before planting carrots, it’s essential to prepare the soil properly. This includes:

  • Adding organic material, such as compost, to improve soil structure and drainage
  • Using a shallow planting depth, typically no more than ½-inch deep
  • Avoiding heavy clay soil, which can be too dense and retain too much water
  • Choosing the Right Variety

    Not all carrot varieties are created equal, and some are better suited to heavy clay soil than others.

    Attracting Beneficial Insects with Flowers

    Planting flowers that attract beneficial insects is a simple yet effective way to maintain a balanced ecosystem in your garden. By incorporating flowers that provide pollen and nectar, you can support the survival of tiny wasps that parasitize certain insect pests or their eggs. These wasps are natural predators that help control pest populations, reducing the need for pesticides and maintaining a healthier garden environment.

    Types of Flowers that Attract Beneficial Insects

  • Sunflowers (Helianthus annuus): These tall, bright yellow flowers are a favorite of many beneficial insects, including bees and butterflies. Zinnias (Zinnia spp.): These colorful flowers come in a variety of shapes and sizes and are a popular choice for attracting pollinators and beneficial insects.

    Gardening events for all ages and skill levels.

    Gardening Events for All Ages

    The UC Master Gardener program is hosting a series of gardening events throughout the county this month. These events are designed to be fun and educational for gardeners of all ages and skill levels. Whether you’re a seasoned pro or just starting out, there’s something for everyone at these events.

    Events by Location

    Here are some of the upcoming events:

  • San Diego County: UC Master Gardener will be hosting a gardening workshop at the San Diego Botanic Garden on March 12th. The workshop will cover topics such as composting, soil health, and integrated pest management.

    These flowers are often grown for their ornamental value, but they also provide a source of nectar for pollinators.

    Growing from Seed

    Choosing the Right Variety

    When growing flowers from seed, it’s essential to choose a variety that is suitable for your climate and the type of pollinators you want to attract. For example, sunflowers are a great choice for attracting bees and butterflies, while calendula is a favorite of hoverflies and lacewings. Research the specific needs of each variety to ensure you’re providing the best conditions for them to thrive. Consider factors such as temperature, sunlight, and soil type when selecting a variety.

    Preparing the Soil

    Before planting sweet potatoes, it’s essential to prepare the soil. This involves loosening the top 8-10 inches of soil to a depth of 12-18 inches. This will allow for good drainage and aeration, which are crucial for healthy root growth. Key factors to consider when preparing the soil: + pH level: Sweet potatoes prefer a slightly acidic to neutral soil pH, ranging from 5.5 to 6.5. + Organic matter: Adding compost or well-rotted manure can improve soil fertility and structure. + Drainage: Ensure the soil drains well to prevent waterlogged conditions that can lead to rot.

    Choosing the Right Variety

    With over 400 varieties of sweet potatoes, selecting the right one can be overwhelming. Consider the following factors when choosing a variety:

  • Climate: Some varieties are better suited for cooler or warmer climates. Maturity: Choose a variety that matures within your growing season. Disease resistance: Select a variety with built-in resistance to common diseases. Flavor and texture: Consider the desired flavor and texture of your sweet potatoes.

    Join us for a fun and interactive session where we will explore the world of plants and answer your burning questions about them.

    Plant Clinic: Uncovering the Secrets of the Green World

    What to Expect

    At our monthly Plant Clinic, we’ll delve into the fascinating world of plants, covering a wide range of topics from the basics to the more advanced. Our expert team will be on hand to answer your burning questions, provide guidance, and share their knowledge with you.

    Meet Our Expert Team

    Our team of experts consists of experienced horticulturists, botanists, and plant enthusiasts who are passionate about sharing their knowledge with others.

  • Categories: Sustainable gardening

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