Iris no Oka is a premier flower park located in Annaka City, Gunma Prefecture, often described as a "paradise of flowers." Spanning approximately 3 hectares of rolling hills, the park is home to a diverse collection of plants, including German Iris, Hemerocallis, and Dahlias. The collection includes both rare imported species and uniquely developed varieties. The park utilizes the natural topography of the hills to create a beautiful gradient of colors that changes with every season.
History & Cultural Background
The facility is dedicated to the pursuit of botanical diversity, importing German Iris seeds from around the world and developing its own original varieties. It is particularly renowned for its massive scale of German Iris cultivation, boasting 1,000 varieties and 100,000 plants. To preserve the natural essence of the landscape, the park avoids excessive use of asphalt or artificial fences, maintaining a harmonious environment where visitors can feel the true breath of nature.
Main Highlights
The park is divided into several specialized areas, each featuring distinct botanical characteristics:
*German Iris Garden**: From early May to early June, 1,000 varieties and 100,000 plants of German Iris bloom in a stunning pastel-colored gradient.
*Hemerocallis Garden**: From late June to mid-July, 1,500 varieties and 200,000 Hemerocallis flowers bloom. Visiting in the morning after a light rain offers a magical view of light reflecting off the water droplets on the petals.
*Dahlia Garden**: From September to early November, 500 varieties and 4,000 plants of charming, rounded Dahlias decorate the landscape.
*Rainbow Garden**: A diverse area featuring over 500 types of seasonal flowers, allowing visitors to experience the changing seasons even outside the main iris blooming periods.
*Specialty & Wildflower Areas**: Includes dedicated sections for Dahlias, Bellflowers, Peonies, Phlox, and Poppies, as well as a charming wildflower area where seeds are sown naturally.
Seasonal Recommendations
The best time to visit depends on which flowers you wish to see:
*Early May to Early June**: Peak season for German Iris, covering the hills in vibrant colors.
*Late June to Mid-July**: Peak season for Hemerocallis; highly recommended for a refreshing morning stroll.
*September to Early November**: Peak season for Dahlias, bringing a splash of color to the autumn landscape.
Activities & Experience
Visitors can enjoy a self-guided tour at their own pace. The hilly terrain provides multiple vantage points to view the flowers from various angles. The park also offers cut flowers and potted plants for sale, including German Iris. Whether you are visiting for a family outing, professional photography, or a peaceful solo retreat, the park caters to all needs. It is also a popular stop for those touring nearby hot spring areas.
Nearby Attractions
Iris no Oka is ideally located for travelers visiting Ikaho Onsen, Isobe Onsen, or the nearby Karuizawa and Tomioka Silk Mill areas, making it an easy addition to a regional sightseeing itinerary.
Essential Information
*Footwear**: The park features natural, unpaved terrain. We highly recommend wearing comfortable walking shoes.
*Payment**: Please note that cash is the primary method of payment.
*English Support**: English availability for staff and signage may vary by season.
*Reservations**: No advanced booking is required, but we recommend checking the blooming status before your visit.
*Pets**: Pets are welcome to accompany you on your stroll.
*Parking**: Free parking is available, including space for large sightseeing buses.
