Frequently Asked Questions

Companion planting is the practice of growing different plants together that benefit each other. It can improve soil health, deter pests, attract beneficial insects, and maximize garden space efficiency.

Some plants compete for nutrients or can inhibit each other's growth. For example, tomatoes and black walnut trees don't mix, and onions can stunt the growth of beans and peas.

Simply select the plants you want to grow, and our calculator will instantly show you which combinations work well together (friends), which to avoid (foes), and neutral pairings.

Yes! Strategic companion planting can increase yields by 20-30% through better nutrient utilization, natural pest control, and improved pollination.

Start seeds indoors 4-12 weeks before the last frost date for warm-season crops. Cool-season crops can often be direct-sown 2-4 weeks before the last frost.

Your last frost date is the average date of the last killing frost in spring. Check with your local agricultural extension office or use our calculator with your location.

Planting too early can result in frost damage, poor germination, or stunted growth. It's better to wait for proper soil temperature and weather conditions.

Absolutely! Plant the same crop every 2-3 weeks throughout the growing season for a continuous harvest of fresh vegetables.

Proper spacing ensures plants get adequate sunlight, nutrients, and air circulation. Overcrowding leads to disease, poor yields, and competition for resources.

Square foot gardening maximizes space in small areas using intensive planting in 1-foot squares. Row gardening uses traditional rows with paths between them.

It depends on the plants! Our calculator shows you exactly how many of each vegetable will fit based on their spacing requirements.

Planting too close actually reduces total yield due to competition. Follow recommended spacing for healthiest plants and maximum harvest.

Test your soil every 2-3 years, or annually if you're actively amending it. Spring is the best time to test before planting season.

Most vegetables prefer slightly acidic to neutral soil with a pH between 6.0-7.0. Some plants like blueberries prefer more acidic conditions.

Organic amendments like compost work gradually over months. Lime for pH adjustment can take 3-6 months. Quick-release fertilizers work within weeks.

Yes! Too much of any amendment can harm plants. Follow soil test recommendations and add amendments gradually over time.

Each vegetable has specific indicators: size, color, firmness, and days to maturity. Our calculator tracks these timing factors for optimal harvest.

Days to maturity count from transplant date (for transplants) or germination date (for direct-sown seeds) to when the crop is ready to harvest.

Many vegetables can be harvested at different stages. Baby greens are tender, while mature vegetables store longer. Timing affects flavor and storage life.

Plant the same crop every 2-3 weeks for continuous harvest. Our calculator helps you plan multiple plantings for extended harvest periods.

NPK stands for Nitrogen (N), Phosphorus (P), and Potassium (K) - three essential macronutrients that plants need for healthy growth. Each number in a fertilizer ratio (like 5-10-10) indicates the percentage of each nutrient.

Different crops have different nutrient requirements based on what they grow. Leafy greens need more nitrogen for leaf development, while fruiting crops like tomatoes need more phosphorus and potassium for fruit production.

Poor soil has fewer nutrients, so it requires higher nitrogen. Good, amendable soil with lots of organic matter needs less supplemental nitrogen. Our calculator adjusts recommendations based on your soil quality.

While a general-purpose balanced fertilizer (like 10-10-10) works for many plants, crop-specific ratios produce better results. Using our recommendations tailored to each crop maximizes yields and plant health.

Nitrogen: Compost, manure, grass clippings, legume cover crops. Phosphorus: Bone meal, rock phosphate, compost. Potassium: Wood ash, kelp meal, compost, potash. Combining organic amendments creates a balanced nutrient profile.

With synthetic fertilizers, follow package directions (often every 2-4 weeks). With organic amendments like compost, apply once at planting and once mid-season. Heavy feeders like corn may need supplemental feeding mid-season.

Cool-season grasses (Kentucky bluegrass, perennial ryegrass) thrive in northern climates and are most active in spring and fall. Warm-season grasses (Bermuda, Zoysia) thrive in southern climates and are most active in summer. Choose fertilizer timing based on your grass type's growth period.

Most lawns need 2-4 lbs of nitrogen per 1000 sq ft per year, applied in split applications. The exact amount depends on grass type, season, soil test results, and desired turf quality. Our calculator helps you determine the right spread rate for each season.

NPK stands for Nitrogen (N), Phosphorus (P), and Potassium (K). Each number represents the percentage by weight. For example, a 30-0-0 fertilizer contains 30% nitrogen and no phosphorus or potassium. Spring applications use high-nitrogen ratios for green growth.

Timing depends on your grass type. Cool-season grasses benefit most from spring and fall applications. Warm-season grasses need feeding in late spring through summer. Avoid fertilizing during drought stress or excessive heat.

Yes. Too much nitrogen causes excessive growth, increases disease susceptibility, and can harm the environment through runoff. Follow recommended spread rates and application schedules. More fertilizer doesn't equal a better lawn.

Synthetic fertilizers provide quick nutrient availability but can leach away. Organic fertilizers (compost, manure) release nutrients slowly and improve soil structure over time. Both have benefits; choose based on your lawn goals and local regulations.

For irregular shapes, break your lawn into simple rectangles and squares, measure each, and add them together. You can also use satellite maps or tools like Google Maps to estimate square footage. Measure in feet first, then convert to square feet by multiplying length × width.

Yes! Water thoroughly after applying granular fertilizer to activate it and work it into the soil profile. This also reduces risk of fertilizer burn on the grass blades. Water within 24 hours of application if rain doesn't occur.

Use our calculator to determine the exact cubic yards needed based on your bed dimensions. A typical recommendation is 3 inches deep for mulch. Simply enter your length, width, and depth to get results instantly.

Mulch (wood chips, straw) covers soil to retain moisture and suppress weeds. Topsoil is nutrient-rich soil for planting. Compost is decomposed organic matter that improves soil structure and adds nutrients. Each serves different purposes.

Most garden beds benefit from 2-4 inches of mulch. Three inches is ideal for moisture retention and weed suppression without compacting roots. Avoid piling mulch against plant stems.

Mulch costs vary by location and type, but typically range from $20-35 per cubic yard. Topsoil usually runs $30-50 per cubic yard, and quality compost can be $45-75 per cubic yard. Our calculator provides cost estimates based on these averages.

Organic mulch breaks down over time, typically lasting 1-2 years before needing replenishment. Wood-based mulches last longer than straw. Plan annual top-dressing to maintain 3 inches of coverage.

While you can, different areas may benefit from different materials. Use wood mulch around shrubs, straw in vegetable beds (easier to work with), and compost around edibles for added nutrients. Mix and match based on your needs.

Spring is ideal for mulch application after soil warms. Fall application protects roots before winter. Avoid mulching in early spring when soil is still cold, as it delays warming. Keep mulch 6 inches away from tree trunks.

Our calculator uses this formula: (length × width × depth ÷ 27 = cubic yards). Convert all measurements to feet first, or use inches and the calculator handles conversion automatically.

It compares your weekly harvest goals against projected crop output and highlights likely shortfalls before they happen, so you can adjust planting timing and crop mix early.

The tool applies weather stress and confidence signals to each planning week, then surfaces warnings when heat, cold, or instability increases failure risk.

Yes. The planner is designed for succession timing and will suggest week-by-week actions to reduce gaps and keep harvest supply more consistent.

No. The forecaster works without signup and supports quick actions like save draft, export CSV, and print for sharing or offline tracking.