Pak Choi Hotaru F1 Seeds

Pak Choi Hotaru F1 Seeds — Mini Heat-Tolerant Bok Choy | Three-Season Production, Restaurant-Style Uniform Heads

Most pak choi has one weakness: heat. The moment summer arrives, they bolt — racing to flower before you can harvest. Hotaru F1 (Brassica rapa subsp. chinensis) was bred to break that rule. Named for the Japanese word for “firefly,” it is the pak choi that lights up the gap in your garden calendar — the weeks and months when every other bok choy has given up.

Plant it in spring. Plant it in summer. Plant it again in fall. Hotaru delivers every time.

The Summer Pak Choi

Genuine heat tolerance and slow bolting extend the harvest window deep into the warm season. While Tall White Stem and Purple Gem are strictly cool-season crops, Hotaru bridges the gap — performing reliably in late spring and summer plantings that would cause other varieties to bolt immediately. For gardeners who want pak choi on the table from spring through fall without interruption, Hotaru is the missing piece.

Why Hotaru F1?

• Three-season versatility: Spring, summer, and fall — the only pak choi in the lineup that performs reliably through the warm season
• Heat-tolerant & slow-bolting: Bred specifically for extended bolt resistance in warm conditions — the critical advantage over standard pak choi types
• Premium mini form: 7–10 cm (3–4 in) wide, squat rosette with broad, substantial petioles — restaurant-quality presentation in the home garden
• F1 uniformity: Every head identical in size and maturity — ideal for planned harvests and succession plantings
• Fast-growing: Quick days to maturity — succession sow every 2–3 weeks for continuous supply across all three seasons
• Completes the collection: Pairs with Tall White Stem F1 (spring/fall full-size) and Purple Gem F1 (fall anthocyanin-rich) for year-round pak choi

In the Kitchen

• Seared & caramelized: Halve lengthwise, place cut-side down in a screaming-hot cast iron pan; sear without moving until deeply caramelized; finish with garlic, oyster sauce, and a splash of water to steam through
• Stir-fry: Halved or quartered; add to wok in the final 2 minutes — wide petioles hold texture beautifully at high heat
• Steamed whole: Steam entire heads until just tender; finish with hot garlic oil and soy sauce for a classic Cantonese preparation
• Braised: Whole heads braised in chicken broth with ginger and Shaoxing wine — compact size means they hold together perfectly
• Grilled: Halved, brushed with miso butter or sesame oil, grilled over high heat — charred edges, tender core
• Soup: Drop whole heads into ramen, miso, or pho in the final minute — uniform mini size makes for a beautiful bowl

Growing Notes

• Type: F1 hybrid warm and cool-season annual — seeds will not breed true
• Seasons: Spring, summer, and fall — three-season production
• Germination: 4–7 days at 60–75°F
• Spring sowing: Direct sow or transplant from 2–3 weeks before last frost through late spring
• Summer sowing: Direct sow through summer — heat tolerance allows planting when other pak choi cannot be grown
• Fall sowing: Direct sow 6–8 weeks before first fall frost
• Succession sowing: Every 2–3 weeks across all three seasons for continuous harvest
• Light: Full sun to part shade; part shade helps in peak summer heat
• Spacing: 15–20 cm (6–8 in) for full mini heads; closer for baby harvest
• Watering: Consistent moisture; mulch in summer to retain soil moisture and moderate soil temperature
• Pest management: Row cover recommended for flea beetle and cabbage worm protection, especially in spring

Packed and shipped by Box Garden Seeds LLC — heirloom seeds grown without GMOs, selected for flavor, resilience, and your garden's success.