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Perennial root to plant
Paeoniaceae
Peony Itoh 'Bartzella'
Paeonia
Itoh Peony ‘Bartzella’ ( Paeonia ) . Itoh Peony 'Bartzella' is an exceptional variety with large, double lemon-yellow flowers highlighted by a vibrant orange heart. Its delicate fragrance, abundant blooming, and vigorous bushy habit make it one of the most sought-after peonies. Resulting from a cross between herbaceous and tree peonies, this Itoh cultivar combines the robustness and prolonged flowering of both types. Ideal for flowerbeds, borders, and large pots, it also offers splendid cut flowers to brighten your home. Water needs: Medium (moist but well-drained soil). Ideal soil: Loamy or sandy, acidic to alkaline pH. In the ground: Ideal for spacious borders and flowerbeds.
- Quantity
- 1 root
- Exposure
- Sun to partial shade
Discover the plant
Common nameItoh Peony
FamilyPaeoniaceae
GenusPeony
TypePerennial root to plant
Botanical namePaeonia
Itoh Peony ‘Bartzella’ (Paeonia). The Itoh Peony 'Bartzella' is an exceptional variety with large, double, lemon-yellow flowers enhanced by a vibrant orange heart. Its delicate fragrance, abundant blooms, and vigorous bushy habit make it one of the most sought-after peonies. Resulting from a cross between herbaceous and tree peonies, this Itoh cultivar combines the robustness and prolonged flowering of both types. Ideal for flowerbeds, borders, and large pots, it also provides splendid cut flowers to brighten your home. Water requirements: Medium (moist but well-drained soil). Ideal soil: Loamy or sandy, pH acidic to alkaline. In the ground: Ideal for spacious borders and flowerbeds.
In pots: Use a large container (minimum 50 cm (20 in) deep). To ensure successful planting, dig a hole 40 cm (16 in) deep and wide. Then, amend the soil with well-decomposed compost to promote flowering. Next, place the root with the buds 2-3 cm (0.79 to 1 in) below the surface (planting too deep limits flowering). Then, space the plants 50 cm (20 in) to 1 m (3.3 ft) apart to allow them to flourish. Then, water generously after planting. Tip: Well-drained soil is essential to prevent root rot. Watering: Regular during growth periods, moderate in summer.
Fertilizer: An application of organic fertilizer in spring stimulates spectacular flowering. Pruning: Cut faded flowers to prolong blooming. In autumn, cut back dry foliage to ground level. Winter protection: Cold-resistant, it does not need winter protection. Spectacular flowering: Large, double, bright, luminous, and vibrant yellow flowers. Delicate fragrance: Ideal for perfuming the garden and bouquets. Vigor and robustness: A cross combining the best of herbaceous and tree peonies. Prolonged flowering: Longer than a classic peony, with several waves of flowers. Easy care: Low maintenance once established. Add a touch of light and sophistication to your garden with the Itoh Peony 'Bartzella'!
Planting guide
Plant well.Grow beautifully.
Growing method
Choose a sunny, permanent location in fertile, well-draining soil. Peonies prefer to stay in the same spot for several years. Loosen a large enough volume of soil to spread the roots without bending them. Place the eyes at a shallow depth: planting too deeply can delay or compromise flowering. After refilling, water to bring the soil into contact with the roots, without heavily compacting with your foot. Keep the area free of weeds and avoid accumulating mulch over the buds. Mark the planting so as not to disturb it during its winter dormancy. Give the peony time to establish itself: a young planting may require patience before offering abundant blooms. Install discreet support at the beginning of growth if the stems are likely to sag under the weight of the flowers. Water during dry periods, especially the first season, and remove faded flowers while keeping the foliage. The still-green leaves contribute to the plant's reserves for the following year. After they wither, cut dry stems and remove diseased debris. Avoid frequent transplanting of the clump and maintain an airy space around new shoots in spring.
Soil and care
The right care,at the right time.
Watering
Water deeply after planting if the soil is dry, then regularly monitor moisture levels during establishment. A well-rooted peony primarily needs watering during dry periods. Pour water slowly at the base to moisten the root zone without leaving the crown in saturated soil. Check beneath the surface before watering again and space out waterings after rain. Mulch can limit evaporation, but keep a clear space around the base of the stems.
Soil type
The desired soil is silty or sandy, pH acidic to alkaline. Check the drainage after rain: water must be able to leave the root zone. Work the soil when it is moist enough to avoid compacting it. Adapt amendments to its actual texture. In containers, use appropriate potting soil and a pot with drainage holes. Keep these openings clear and avoid any accumulation of water in the saucer.
Fertilization
Before adding fertilizer, consider the richness of your soil and any previous applications. A soil analysis can help in choosing useful amendments. If you use a fertilizing product, respect the dose, frequency, and method of application indicated on its packaging. Avoid concentrated applications directly on the roots. Do not overdo it with products: an excessive amount of fertilizer does not guarantee better growth or more abundant flowering.
Seasonal care
Choose a sunny, permanent location in fertile, well-draining soil. Peonies appreciate being able to settle in the same spot for several years. Loosen a volume of soil large enough to spread the roots without bending them. Place the eyes at a shallow depth: planting too deeply can delay or compromise flowering. After backfilling, water to bring the soil into contact with the roots, without compacting it heavily with your foot. Keep the area clear of weeds and avoid accumulating mulch over the buds. Mark the planting so as not to disturb it during its winter dormancy. Give the peony time to establish itself: a young planting may require patience before offering abundant blooms. Install discreet support early in the growth if the stems are likely to sag under the weight of the flowers. Water during dry periods, especially in the first season, and remove faded flowers while retaining the foliage. The still-green leaves contribute to the plant's reserves for the following year. After they wither, cut the dry stems and remove diseased debris. Avoid frequent relocation of the clump and keep the area around new shoots airy in spring. Over the seasons, observe new shoots, soil moisture, and the condition of the stems. A durable label helps locate the planting during its dormancy. Clean tools after cutting diseased parts and remove debris that degrades around the base of the plant.
Container growing
A garden,within reach.
Container gardening requires you to plan for the root volume and the plant's final height. Choose a stable pot with drainage holes and a suitable growing medium. Leave enough space to allow for the recommended depth and spacing, rather than crowding plants to immediately fill the pot. Place the container in the recommended exposure and regularly check the moisture, especially in hot or windy weather. A pot is more exposed to temperature variations than a plant in the ground. Therefore, plan for a wintering location compatible with the plant's needs and your region's climate from the outset. Choose a sunny, permanent location with fertile, well-draining soil. Peonies appreciate being able to stay in the same spot for several years. Loosen a large enough volume of soil to spread the roots without bending them. Place the eyes at a shallow depth: planting too deeply can delay or compromise flowering. After backfilling, water to bring the soil into contact with the roots, without heavily tamping with your foot. Keep the area clear of weeds and avoid accumulating mulch over the buds. Mark the planting so as not to disturb it during its winter dormancy. In winter, protect the container according to the plant's needs: its roots are more exposed to cold than those in the ground.
Bloom and dimensions
Its place,in your garden.
Mature height
120 cm (48")
Bloom period
The Itoh Peony 'Bartzella' is an exceptional variety with large, double, lemon-yellow flowers enhanced by a vibrant orange heart. Its delicate fragrance, abundant blooms, and vigorous bushy habit make it one of the most sought-after peonies. Resulting from a cross between herbaceous and tree peonies, this Itoh cultivar combines the robustness and prolonged flowering of both types. Ideal for beds, borders, and large pots, it also provides splendid cut flowers to brighten your home. Watering: Regular during the growing season, moderate in summer. Spectacular bloom: Large, double, bright, and radiant yellow flowers.
Garden associations
In goodcompany.
Companion plants
To accompany Itoh Peony ‘Bartzella’, you might consider perennial geraniums, irises, or catmint. Choose neighboring varieties based on their height, flowering period, and the colors you wish to combine. Most importantly, ensure that their sun exposure and water needs are suitable for the same location. Leave enough space so that leaves don't obscure young shoots and to allow easy access to each plant for maintenance. These combinations help to create the garden's aesthetic; they do not guarantee protection against pests or diseases. Adjust the layout after observing one growing season.
Frequently asked questions
Your questions,answered.
How to successfully plant an Itoh Peony 'Bartzella'?
Choose a sunny and durable location, in fertile soil with good drainage. Peonies enjoy being able to settle in the same spot for several years. Loosen an area of soil large enough to spread out the roots without bending them. Place the eyes shallowly: planting too deeply can delay or compromise flowering. After backfilling, water to bring the soil into contact with the roots, without heavily tamping with your foot. Keep the area clear of weeds and avoid accumulating mulch over the buds. Mark the planting area so as not to disturb it during its winter dormancy.
What light should I provide for Itoh Peony 'Bartzella'?
The recommended exposure is sun to partial shade. Observe the light in your chosen location in the morning and afternoon, as the shade from trees or buildings changes throughout the day. Also consider neighboring plants: their foliage can obscure a young planting as it grows. For container plants, place the pot where you can move it if conditions become too hot or too shady. Suitable exposure must go hand-in-hand with appropriate soil and watering. If you are moving a plant started indoors to the outdoors, gradually acclimate it to garden conditions to avoid too abrupt a transition for young leaves.
How to adjust the irrigation?
Water according to the actual soil moisture, taking into account rain, heat, and wind. Check below the surface before deciding to water again: soil that is dry on the surface may still be moist at the root level. Direct water to the base of the plant and let it penetrate, without keeping the plant in saturated soil. Containers generally require more frequent checks because they dry out faster. Make sure their drainage holes remain clear and empty any saucers that retain water. Also adapt care to the plant's cycle: active growth and a dormant period do not require the same amount of water.
What should you plan for container growing?
Planting in the ground offers more space to establish this plant permanently. If you choose a container, you need to consider the volume required for the roots and the plant's final height. Choose a stable pot with drainage holes and a suitable growing medium. Leave enough room to respect the recommended depth and spacing, rather than cramming plants together to fill the pot immediately. Place the container in the indicated exposure and regularly check the moisture, especially in hot or windy weather. A pot is more exposed to temperature variations than ground planting. Therefore, plan for a wintering location from the outset that is compatible with the plant's needs and your region's climate.
What care should be provided after the growing season?
Allow the peony time to establish itself: a young plant may require patience before offering a generous bloom. Install discreet support early in its growth if the stems are likely to sag under the weight of the flowers. Water during dry periods, especially during the first season, and remove spent blooms while keeping the foliage. Green leaves contribute to the plant's reserves for the following year. After they wither, cut the dry stems and remove any diseased debris. Avoid frequently moving the clump and keep the area around new shoots aerated in spring.
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