Days to Maturity: Approximately 70-80 days from transplant to full harvest (leaves can be picked earlier and continuously as needed).
Sun Needs: Full sun to partial shade (6+ hours of direct sun ideal); in Utah's hot summers, light afternoon shade can help prevent bolting and keep leaves tender.
Season Type: Cool-season biennial (often grown as an annual); plant early spring (as soon as soil is workable, around 40°F+) or late summer for fall/winter harvest—very cold-hardy, tolerates light frosts and can overwinter in many Utah areas with mulch protection.
Plant Habit & Support: Upright, bushy plants 18-24 inches tall and 12-18 inches wide; no support needed—space 8-12 inches apart for good airflow and easy harvesting.
Other Notes: Slow-bolting and vigorous for a parsley; watch for aphids, leaf miners, or fungal issues like leaf spot—good airflow, avoiding overhead watering, and organic mulch (like straw or compost) help prevent problems; regular harvesting (cut outer leaves) encourages bushier growth and delays bolting.
Best Planting Method: Transplant when soil is cool and workable in early spring or late summer for fall crops. Space plants 8-12 inches apart in rows or beds; plant at the same depth as in the pot. Amend soil with compost for fertility and excellent drainage—raised beds are beneficial in heavier or alkaline Utah soils to avoid waterlogging. Organic mulch (such as straw, compost, or grass clippings) around plants retains moisture, moderates soil temperature, and suppresses weeds.
Watering Needs: Keep soil consistently moist but not soggy (about 1 inch per week)—even moisture supports tender leaves and prevents bitterness or bolting; drip irrigation or base watering is best in dry Utah conditions to keep foliage dry and reduce disease. Mulch helps hold moisture during warmer spells; containers dry out faster, so monitor closely for steady supply.
Fertilization Needs: Incorporate compost or balanced organic fertilizer at planting for nutrient-rich soil. Parsley is a moderate feeder—apply a light nitrogen-rich side-dressing (like compost tea or fish emulsion) midway through the season if growth slows or leaves pale, but avoid excess to prevent soft, pest-prone foliage. Harvest outer leaves regularly by cutting stems at the base to promote new growth from the center—frequent picking keeps plants productive and flavorful for months, often through fall and into winter with protection. It's great for containers.