Hi Denise,

This first plant is a dracaena warneki. A Dracaena Warnekii survives in low lightWhen you select “Low Light” a list of the most adaptive plants in our database appears. These plants can live in lighting conditions too low to support any other plants in our database, but will grow faster in medium and high light. Variegation (color) in the leaves is often lost in low light. A plant in low light needs less water and fertilizer than the same plant in better light. Place a low-light plant within 2-3 ft. of a window with a northern exposure, 3-5 ft. of a window with an eastern exposure, 4-10 ft. of a window with a western exposure, and 10-18ft. of a window with a southern exposure. A low light area has between 50-150 ft. candles of light. The best low light house plants are: Chinese Evergreen, Dracaena Janet Craig, Peace Lily, Heart leaf Philodendron., but grows faster and fuller in medium light. In low lightWhen you select “Low Light” a list of the most adaptive plants in our database appears. These plants can live in lighting conditions too low to support any other plants in our database, but will grow faster in medium and high light. Variegation (color) in the leaves is often lost in low light. A plant in low light needs less water and fertilizer than the same plant in better light. Place a low-light plant within 2-3 ft. of a window with a northern exposure, 3-5 ft. of a window with an eastern exposure, 4-10 ft. of a window with a western exposure, and 10-18ft. of a window with a southern exposure. A low light area has between 50-150 ft. candles of light. The best low light house plants are: Chinese Evergreen, Dracaena Janet Craig, Peace Lily, Heart leaf Philodendron. the new leaves may be smaller and narrower. Direct sun burns the leaves. All Dracaenas  like to be kept on the dry side. Water well and then allow the top 50% of the soil to dry out before watering again. Dark brown leaf tips are a sign of over-watering or extreme under-watering. The lower the light the less water a Dracaena Warnekii needs. All Dracaenas are very sensitive to fluorine & salt; it causes brown leaf tips. If your water is fluoridated and/or passes through a softener do one of the following: let it sit out over night before using it; use water from your outside hose,  or use distilled water. These plants do not require much fertilizerPlants need fertilizer only when they are actively growing. Slow growing plants in low light require very little plant food. Too much fertilizer is worse than not enough. Most plants prefer a water soluble plant food at 1/2 the recommended strength. Plants that are in bloom or dormant should not be fertilized. Houseplant food contains nitrogen (N), phosphorus (P), and potassium (K). A fertilizer containing these elements in equal proportion is considered a balanced plant food. Nitrogen helps in photosynthesis and encourages the growth of leaves and stems. Potassium and phosphorus also help in photosynthesis and aid in root and flower development. Most fertilizers have trace elements of other minerals that are lacking in the soil but are necessary for good plant growth. Fertilizers have a high salt content. If a plant is not producing new leaves and doesn’t absorb the fertilizer, salts build up in the soil. These salts can burn the roots, discolor the leaves, and cause new growth to be small.. Feed with a good indoor plant food monthly in spring and summer diluted to 1/2 the recommended strength. It’s not necessary to feed Dracaenas in the fall or winter. Too much plant food also causes brown tips. You can read all my care tips for this plant in the Popular Houseplant section of the website.

https://www.houseplant411.com/houseplant/dracaena-warnekii-how-to-grow-care

The second plants is a philodendron bipinnatifidum “atom plante” (tree philodendron) also called a Philodendron selloum ‘Mighty Atom. ‘  Your plant hasn’t developed the large cut outs seen in some bipinnatifidum leaves  probably because it hasn’t gotten enough light. A Philodendron Selloum grows well in bright indirect lightVery few houseplants should be placed in direct sun. High light refers only to bright indirect light since direct sun often burns the leaves of indoor houseplants. An area that is too hot and dry encourages Spider Mites and causes blooms to quickly fade. A northern exposure really doesn't provide enough light for high light plants. These plants need to be placed directly in front of an east-facing window, within 1-3 feet of a west-facing window, and within 5 ft. of a south facing window. A high light area has over 300 ft. candles of light.. In lower light, the leaves turn a darker green and don’t “split.” Direct sun or too much light burns or fades the leaves. Unlike other Philodendrons, the Selloum likes moist but not soggy soil. During the winter, water less often, keeping the soil barely moist. Feed a Philodendron Selloum monthly during the spring, summer, and fall with a water-soluble fertilizerPlants need fertilizer only when they are actively growing. Slow growing plants in low light require very little plant food. Too much fertilizer is worse than not enough. Most plants prefer a water soluble plant food at 1/2 the recommended strength. Plants that are in bloom or dormant should not be fertilized. Houseplant food contains nitrogen (N), phosphorus (P), and potassium (K). A fertilizer containing these elements in equal proportion is considered a balanced plant food. Nitrogen helps in photosynthesis and encourages the growth of leaves and stems. Potassium and phosphorus also help in photosynthesis and aid in root and flower development. Most fertilizers have trace elements of other minerals that are lacking in the soil but are necessary for good plant growth. Fertilizers have a high salt content. If a plant is not producing new leaves and doesn’t absorb the fertilizer, salts build up in the soil. These salts can burn the roots, discolor the leaves, and cause new growth to be small. diluted to ½ the recommended strength. Too much plant food causes excess salt build up in the soil that can result in leaf burn. You can read all my care tips for this Philodendron in the Popular Houseplant section of the website.

https://www.houseplant411.com/houseplant/philodendron-selloum-how-to-grow-plant-care

A Selloum does grow a trunk as it matures, but the huge drooping leaves (which are normal) usually hide it.