四月是园丁的马拉松。每周都会迎来新的种植窗口，而好季节与great季节之间的差距，往往就取决于你这个月的行动。
四月是园艺日历中最忙碌的月份。凉季移植苗（西兰花、卷心菜、羽衣甘蓝）在本月初入土，而暖季种子（豆类、南瓜、黄瓜）则在许多地区四月中旬后于室内育苗或直接播种。多年生植物生长迅速，在倒伏之前需及早立支架。春季球根花卉此时进入盛花期，现在正是记录哪些空缺处适合秋季补种球根的好时机。杂草压力急剧增加——现在勤于除草，日后可节省数倍的精力。当土壤温度稳定在55°F（13°C）以上时，可对草坪进行补播和施肥。
为西兰花、卷心菜、羽衣甘蓝和花椰菜幼苗安装防切根虫保护环后移植入园
土壤温度达到60°F（15°C）后，直接播种豆类、南瓜和黄瓜（如天气偏凉可先在室内育苗）
在牡丹、高飞燕草及其他易倒伏的多年生植物长到12英寸之前立好支架
趁土壤湿润时彻底除草——现在拔除可防止日后数以千计的种子散播
Photograph your spring bulb display from several angles now — use these images in fall when deciding where to add more bulbs
Install edging between lawn and garden beds while both are actively growing to establish a clean visual line
Group container pots in odd numbers near entryways and seating areas for the strongest visual impact
常见问题
01 What should I plant in April?
Transplant cool-season crops (broccoli, cabbage, kale) early in the month. Direct-sow beans, squash, and cucumbers after mid-April when soil warms. Plant perennials, bare-root strawberries, and herbs. Start hardening off tomato and pepper seedlings for late-April or May transplanting.
02 Can I plant tomatoes outside in April?
In USDA zones 7 and warmer, late April tomato planting is often safe. In zones 5–6, wait until mid-May unless you use wall-o-water cloches or row covers. Soil should be consistently above 60°F and all frost risk should be past.
03 How often should I water new plantings in April?
Water new transplants deeply every 2–3 days for the first two weeks, then transition to deep weekly watering. Spring rain often handles much of this, but check soil moisture at finger depth — if the top inch is dry, water. Newly seeded areas need light daily watering to keep the surface moist.